Im new to using mods i dont know what happened here

Heres crash report

Time: 2022-08-03 15:21:06
Description: Mod loading error has occurred

java.lang.Exception: Mod Loading has failed
at net.minecraftforge.logging.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:55) ~[forge-1.19.1-42.0.2-universal.jar%23125!/:?] {re:classloading}
at net.minecraftforge.server.loading.ServerModLoader.load(ServerModLoader.java:39) ~[forge-1.19.1-42.0.2-universal.jar%23125!/:?] {re:classloading}
at net.minecraft.server.Main.main(Main.java:113) ~[server-1.19.1-20220727.212338-srg.jar%23120!/:?] {re:classloading}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
at net.minecraftforge.fml.loading.targets.CommonServerLaunchHandler.lambda$launchService$0(CommonServerLaunchHandler.java:29) ~[fmlloader-1.19.1-42.0.2.jar%2367!/:?] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-10.0.8.jar%2354!/:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-10.0.8.jar%2354!/:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-10.0.8.jar%2354!/:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-10.0.8.jar%2354!/:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-10.0.8.jar%2354!/:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-10.0.8.jar%2354!/:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-10.0.8.jar%2354!/:?] {}
at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) [bootstraplauncher-1.1.2.jar:?] {}

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: main
Stacktrace:
at java.util.Objects.requireNonNull(Objects.java:334) ~[?:?] {re:mixin}
-- MOD alexsmobs --
Details:
Mod File: /server/mods/alexsmobs-1.19.5.jar
Failure message: Alex's Mobs (alexsmobs) encountered an error during the common_setup event phase
java.lang.NullPointerException: Registry Object not present: alexsmobs:crocodile_scute
Mod Version: 1.19.5
Mod Issue URL: https://github.com/Alex-the-666/AlexsMobs/issues
Exception message: java.lang.NullPointerException: Registry Object not present: alexsmobs:crocodile_scute
Stacktrace:
at java.util.Objects.requireNonNull(Objects.java:334) ~[?:?] {re:mixin}
at net.minecraftforge.registries.RegistryObject.get(RegistryObject.java:204) ~[forge-1.19.1-42.0.2-universal.jar%23125!/:?] {re:mixin,re:classloading}
at com.github.alexthe666.alexsmobs.item.AMItemRegistry.init(AMItemRegistry.java:294) ~[alexsmobs-1.19.5.jar%2399!/:1.19.5] {re:classloading}
at com.github.alexthe666.alexsmobs.AlexsMobs.setup(AlexsMobs.java:165) ~[alexsmobs-1.19.5.jar%2399!/:1.19.5] {re:classloading}
at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247) ~[eventbus-6.0.0.jar%2351!/:?] {}
at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239) ~[eventbus-6.0.0.jar%2351!/:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-6.0.0.jar%2351!/:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-6.0.0.jar%2351!/:?] {}
at net.minecraftforge.fml.javafmlmod.FMLModContainer.acceptEvent(FMLModContainer.java:107) ~[javafmllanguage-1.19.1-42.0.2.jar%23122!/:?] {}
at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$10(ModContainer.java:122) ~[fmlcore-1.19.1-42.0.2.jar%23121!/:?] {}
at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804) ~[?:?] {}
at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796) ~[?:?] {}
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) ~[?:?] {}
at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182) ~[?:?] {}
at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) ~[?:?] {re:computing_frames}
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) ~[?:?] {re:computing_frames}
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) ~[?:?] {}

I'm having the same issue but with a different item. For me it is the straddle board

fixed