i've tried a lot of things but every time i try to start my server with the forgeessentials mod it crashes.
my console says: 05.04 12:47:53 [Multicraft] Received start command
05.04 12:47:53 [Multicraft] Loading server properties
05.04 12:47:53 [Multicraft] Starting server!
05.04 12:47:53 [Multicraft] Loaded config for "Forge 1.12.2"
05.04 12:47:53 [Multicraft] Updating eula.txt file
05.04 12:47:56 [Server] INFO 2020-04-05 12:47:56,452 main WARN Disabling terminal, you're running in an unsupported environment.
05.04 12:47:56 [Server] main/INFO [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLServerTweaker
05.04 12:47:56 [Server] main/INFO [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLServerTweaker
05.04 12:47:56 [Server] main/INFO [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLServerTweaker
05.04 12:47:56 [Server] main/INFO [FML]: Forge Mod Loader version 14.23.5.2847 for Minecraft 1.12.2 loading
05.04 12:47:56 [Server] main/INFO [FML]: Java is OpenJDK 64-Bit Server VM, version 1.8.0_242, running on Linux:amd64:4.19-ovh-xxxx-std-ipv6-64, installed at /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.242.b08-0.el7_7.x86_64/jre
05.04 12:47:56 [Server] main/WARN [FML]: The coremod FMLCorePlugin (net.minecraftforge.fml.relauncher.FMLCorePlugin) is not signed!
05.04 12:47:56 [Server] main/WARN [FML]: The coremod FMLForgePlugin (net.minecraftforge.classloading.FMLForgePlugin) is not signed!
05.04 12:47:56 [Server] main/INFO [FML]: Searching /./mods for mods
05.04 12:47:56 [Server] main/INFO [FML]: Loading tweaker org.spongepowered.asm.launch.MixinTweaker from forgeessentials-1.12.2-12.3.54-client.jar
05.04 12:47:56 [Server] main/INFO [FML]: Loading tweaker com.forgeessentials.core.preloader.FELaunchHandler from forgeessentials-1.12.2-12.3.60-server.jar
05.04 12:47:56 [Server] main/INFO [FML]: Loading tweaker org.spongepowered.asm.launch.MixinTweaker from spongeforge-1.12.2-2838-7.1.7.jar
05.04 12:47:56 [Server] main/INFO [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
05.04 12:47:56 [Server] main/INFO [LaunchWrapper]: Loading tweak class name org.spongepowered.asm.launch.MixinTweaker
05.04 12:47:56 [Server] main/INFO [mixin]: SpongePowered MIXIN Subsystem Version=0.7.10 Source=file:/./mods/forgeessentials-1.12.2-12.3.54-client.jar Service=LaunchWrapper Env=SERVER
05.04 12:47:56 [Server] main/WARN [FML]: The coremod SpongeCoremod (org.spongepowered.mod.SpongeCoremod) is not signed!
05.04 12:47:56 [Server] main/INFO [mixin]: Compatibility level set to JAVA_8
05.04 12:47:56 [Server] main/FATAL [Sponge]: //
05.04 12:47:56 [Server] main/FATAL [Sponge]: / Old Mixin Version Loaded! /
05.04 12:47:56 [Server] main/FATAL [Sponge]: //
05.04 12:47:56 [Server] main/FATAL [Sponge]: /* Hey, sorry, but Sponge requires a newer version of Mixin being loaded, and unfortunately
05.04 12:47:56 [Server] INFO with an older version, nothing will work as it should. Please rename the sponge jar to load
05.04 12:47:56 [Server] INFO earlier than other coremods, so that Sponge's Mixin version will be loaded (they're backwards
05.04 12:47:56 [Server] INFO compatible, but not forwards compatible). We're sorry for the inconvenience, but this is all
05.04 12:47:56 [Server] INFO that we can do. /
05.04 12:47:56 [Server] main/FATAL [Sponge]: / /
05.04 12:47:56 [Server] main/FATAL [Sponge]: / Current Loaded Mixin : 0.7.10 /
05.04 12:47:56 [Server] main/FATAL [Sponge]: / Required Mixin Version : 0.7.11 /
05.04 12:47:56 [Server] main/FATAL [Sponge]: /**************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************/
05.04 12:47:56 [Server] main/ERROR [mixin]: Catching
05.04 12:47:58 [Multicraft] Skipped 54 lines due to rate limit (30/s)
05.04 12:47:58 [Server] main/ERROR [FML]: FML appears to be missing any signature data. This is not a good thing
05.04 12:47:58 [Server] main/INFO [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
05.04 12:47:58 [Server] main/INFO [LaunchWrapper]: Calling tweak class org.spongepowered.asm.launch.MixinTweaker
05.04 12:47:58 [Server] main/WARN [mixin]: MixinEnvironment::setCompatibilityLevel is deprecated and will be removed. Set level via config instead!
05.04 12:47:58 [Server] main/ERROR [mixin]: Mixin config mixins.forgeessentials.client.json does not specify "minVersion" property
05.04 12:47:58 [Server] main/INFO [mixin]: Initialised Mixin FML Remapper Adapter with net.minecraftforge.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper@6dba847b
05.04 12:47:58 [Server] main/INFO [LaunchWrapper]: Calling tweak class com.forgeessentials.core.preloader.FELaunchHandler
05.04 12:47:58 [Server] main/WARN [mixin]: MixinEnvironment::setCompatibilityLevel is deprecated and will be removed. Set level via config instead!
05.04 12:47:58 [Server] main/WARN [mixin]: MixinEnvironment::setCompatibilityLevel is deprecated and will be removed. Set level via config instead!
05.04 12:47:58 [Server] main/ERROR [mixin]: Mixin config mixins.forgeessentials.json does not specify "minVersion" property
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/dom4j-1.6.1.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/javax.inject-1.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/geronimo-jta_1.1_spec-1.1.1.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/jsr250-api-1.0.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/cdi-api-1.1.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/pircbotx-2.0.1.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/classmate-1.3.0.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/hibernate-commons-annotations-5.0.1.Final.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/jboss-interceptors-api_1.1_spec-1.0.0.Beta1.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/mysql-connector-java-5.1.22.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/javassist-3.20.0-GA.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/jboss-logging-3.3.0.Final.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/h2-1.3.175.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/hibernate-core-5.2.2.Final.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/el-api-2.2.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/hibernate-jpa-2.1-api-1.0.0.Final.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/jandex-2.0.0.Final.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/slf4j-api-1.7.5.jar to classpath
05.04 12:47:58 [Server] main/INFO [ForgeEssentials]: Added library /ForgeEssentials/lib/antlr-2.7.7.jar to classpath
05.04 12:47:58 [Server] main/INFO [ASM_ClassInjector]: Scanning injector class com.forgeessentials.core.preloader.injections.MixinEntity
05.04 12:48:00 [Multicraft] Skipped 9 lines due to rate limit (30/s)
05.04 12:48:00 [Server] main/WARN [mixin]: @mixin target net.minecraft.block.state.BlockStateContainer$StateImplementation is public in mixins.common.api.json:mcp.block.state.StateImplementationMixin_API and should be specified in value
05.04 12:48:02 [Server] main/INFO [ASM_MethodInjector]: Injecting MixinEntity.attackEntityFrom_event into EntityLivingBaseMixin.func_70097_a at HEAD
05.04 12:48:02 [Server] main/WARN [mixin]: Error loading class: net/minecraft/client/multiplayer/PlayerControllerMP (net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@7bc9e6ab from coremod FMLCorePlugin)
05.04 12:48:02 [Server] main/WARN [mixin]: @mixin target net.minecraft.client.multiplayer.PlayerControllerMP was not found mixins.forgeessentials.client.json:MixinPlayerControllerMP
05.04 12:48:02 [Server] main/ERROR [mixin]: Classloader restrictions [PACKAGE_CLASSLOADER_EXCLUSION] encountered loading mixins.forgeessentials.json:block.MixinBlockPortal, name: com.forgeessentials.core.preloader.mixin.block.MixinBlockPortal
05.04 12:48:02 [Server] main/ERROR [mixin]: Classloader restrictions [PACKAGE_CLASSLOADER_EXCLUSION] encountered loading mixins.forgeessentials.json:block.MixinBlockFire, name: com.forgeessentials.core.preloader.mixin.block.MixinBlockFire
05.04 12:48:02 [Server] main/ERROR [mixin]: Classloader restrictions [PACKAGE_CLASSLOADER_EXCLUSION] encountered loading mixins.forgeessentials.json:block.MixinBlockEndPortal, name: com.forgeessentials.core.preloader.mixin.block.MixinBlockEndPortal
05.04 12:48:02 [Server] main/ERROR [mixin]: Classloader restrictions [PACKAGE_CLASSLOADER_EXCLUSION] encountered loading mixins.forgeessentials.json:command.MixinCommandHandler, name: com.forgeessentials.core.preloader.mixin.command.MixinCommandHandler
05.04 12:48:02 [Server] main/ERROR [mixin]: Classloader restrictions [PACKAGE_CLASSLOADER_EXCLUSION] encountered loading mixins.forgeessentials.json:entity.MixinEntity, name: com.forgeessentials.core.preloader.mixin.entity.MixinEntity
05.04 12:48:02 [Server] main/ERROR [mixin]: Classloader restrictions [PACKAGE_CLASSLOADER_EXCLUSION] encountered loading mixins.forgeessentials.json:entity.player.MixinEntityPlayer, name: com.forgeessentials.core.preloader.mixin.entity.player.MixinEntityPlayer
05.04 12:48:02 [Server] main/ERROR [mixin]: Classloader restrictions [PACKAGE_CLASSLOADER_EXCLUSION] encountered loading mixins.forgeessentials.json:item.crafting.MixinCraftingManager, name: com.forgeessentials.core.preloader.mixin.item.crafting.MixinCraftingManager
05.04 12:48:02 [Server] main/ERROR [mixin]: Classloader restrictions [PACKAGE_CLASSLOADER_EXCLUSION] encountered loading mixins.forgeessentials.json:network.MixinNetHandlerPlayServer, name: com.forgeessentials.core.preloader.mixin.network.MixinNetHandlerPlayServer
05.04 12:48:02 [Server] main/ERROR [mixin]: Classloader restrictions [PACKAGE_CLASSLOADER_EXCLUSION] encountered loading mixins.forgeessentials.json:MixinDimensionManager, name: com.forgeessentials.core.preloader.mixin.MixinDimensionManager
05.04 12:48:03 [Server] main/WARN [mixin]: Static binding violation: PRIVATE @overwrite method func_189509_E in mixins.common.core.json:world.WorldMixin cannot reduce visibiliy of PUBLIC target method, visibility will be upgraded.
05.04 12:48:05 [Server] main/INFO [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.server.MinecraftServer}
05.04 12:48:06 [Server] main/WARN [mixin]: Method overwrite conflict for accessor$dropRecordItem in mixins.common.core.json:block.BlockJukeboxAccessor, previously written by org.spongepowered.common.mixin.core.block.BlockJukeboxMixin. Skipping method.
05.04 12:48:07 [Server] main/WARN [mixin]: Method overwrite conflict for accessor$getScoreboard in mixins.common.core.json:scoreboard.ScorePlayerTeamAccessor, previously written by org.spongepowered.common.mixin.core.scoreboard.ScorePlayerTeamMixin. Skipping method.
05.04 12:48:07 [Server] main/WARN [mixin]: Method overwrite conflict for accessor$setScoreboard in mixins.common.core.json:scoreboard.ScorePlayerTeamAccessor, previously written by org.spongepowered.common.mixin.core.scoreboard.ScorePlayerTeamMixin. Skipping method.
05.04 12:48:10 [Server] main/FATAL Failed to start the minecraft server
05.04 12:48:10 [Server] INFO java.lang.IllegalStateException: Minecraft plugin container is not initialized
05.04 12:48:10 [Server] INFO at com.google.common.base.Preconditions.checkState(Preconditions.java:444) ~[minecraft_server.1.12.2.jar:?]
05.04 12:48:10 [Server] INFO at org.spongepowered.common.SpongeImpl.getMinecraftPlugin(SpongeImpl.java:174) ~[SpongeImpl.class:1.12.2-2838-7.1.7]
05.04 12:48:10 [Server] INFO at net.minecraft.command.ServerCommandManager.bridge$wrapCommand(SourceFile:698) ~[dh.class:?]
05.04 12:48:10 [Server] INFO at net.minecraft.command.ServerCommandManager.func_71560_a(SourceFile:684) ~[dh.class:?]
05.04 12:48:10 [Server] INFO at net.minecraft.command.ServerCommandManager.(SourceFile:22) ~[dh.class:?]
05.04 12:48:10 [Server] INFO at net.minecraft.server.MinecraftServer.func_175582_h(MinecraftServer.java:169) ~[MinecraftServer.class:?]
05.04 12:48:10 [Server] INFO at net.minecraft.server.MinecraftServer.(MinecraftServer.java:162) ~[MinecraftServer.class:?]
05.04 12:48:10 [Server] INFO at net.minecraft.server.dedicated.DedicatedServer.(DedicatedServer.java:69) ~[nz.class:?]
05.04 12:48:10 [Server] INFO at net.minecraft.server.MinecraftServer.main(MinecraftServer.java:1542) [MinecraftServer.class:?]
05.04 12:48:10 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_242]
05.04 12:48:10 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_242]
05.04 12:48:10 [Server] INFO at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_242]
05.04 12:48:10 [Server] INFO at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_242]
05.04 12:48:10 [Server] INFO at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
05.04 12:48:10 [Server] INFO at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
05.04 12:48:10 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_242]
05.04 12:48:10 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_242]
05.04 12:48:10 [Server] INFO at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_242]
05.04 12:48:10 [Server] INFO at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_242]
05.04 12:48:10 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70) [forge-1.12.2.jar:?]
05.04 12:48:10 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34) [forge-1.12.2.jar:?]
05.04 12:48:10 [Multicraft] Server shut down (starting)
05.04 12:48:10 [Multicraft] Not restarting crashed server.
05.04 12:48:10 [Multicraft] Server stopped

so i don't know how i can fix this i've asked the site for help but they say that i need to send this problem to the makers of the mod

You are Running a Sponge server. Forge Essentials does not support Sponge.