[17:12:44] [main/ERROR]: Failed to start the minecraft server
java.lang.RuntimeException: Mixin transformation of net.minecraft.class_3222 failed
at Not Enough Crashes deobfuscated stack trace.(1.19.2+build.20) ~[?:?]
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:248) ~[quilt-loader-0.17.4.jar:?]
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:146) ~[quilt-loader-0.17.4.jar:?]
at org.quiltmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:156) ~[quilt-loader-0.17.4.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[?:?]
at net.minecraft.util.SystemDetails.handler$cdk000$fillSystemDetails(SystemDetails:1021) ~[?:?]
at net.minecraft.util.SystemDetails.(SystemDetails:58) ~[?:?]
at net.minecraft.util.crash.CrashReport.(CrashReport:34) ~[?:?]
at net.minecraft.util.crash.CrashReport.initCrashReport(CrashReport:274) ~[?:?]
at net.minecraft.server.Main.main(Main:91) [server-intermediary.jar:?]
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:578) ~[?:?]
at org.quiltmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:423) [quilt-loader-0.17.4.jar:?]
at org.quiltmc.loader.impl.launch.knot.Knot.launch(Knot.java:76) [quilt-loader-0.17.4.jar:?]
at net.fabricmc.loader.launch.knot.KnotServer.main(KnotServer.java:31) [quilt-loader-0.17.4.jar:?]
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:578) ~[?:?]
at org.quiltmc.loader.impl.launch.server.QuiltServerLauncher.main(QuiltServerLauncher.java:63) [quilt-loader-0.17.4.jar:?]
Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
at Not Enough Crashes deobfuscated stack trace.(1.19.2+build.20) ~[?:?]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:392) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:243) ~[quilt-loader-0.17.4.jar:?]
... 16 more
Caused by: org.spongepowered.asm.mixin.throwables.MixinApplyError: Mixin [pingspam.mixins.json:ServerPlayerEntityMixin from mod pingspam] from phase [DEFAULT] in config [pingspam.mixins.json] FAILED during APPLY
at org.spongepowered.asm.mixin.transformer.MixinProcessor.handleMixinError(MixinProcessor.java:638) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.handleMixinApplyError(MixinProcessor.java:589) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:379) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:243) ~[quilt-loader-0.17.4.jar:?]
... 16 more
Caused by: org.spongepowered.asm.mixin.transformer.throwables.InvalidMixinException: @shadow method method_43502 in pingspam.mixins.json:ServerPlayerEntityMixin from mod pingspam was not located in the target class net.minecraft.class_3222. Using refmap pingspam-refmap.json
at Not Enough Crashes deobfuscated stack trace.(1.19.2+build.20) ~[?:?]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attachSpecialMethod(MixinPreProcessorStandard.java:436) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attachShadowMethod(MixinPreProcessorStandard.java:412) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attachMethods(MixinPreProcessorStandard.java:340) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:299) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:277) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinInfo.createContextFor(MixinInfo.java:1289) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:292) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:421) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:403) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.11.4+mixin.0.8.5.jar:0.11.4+mixin.0.8.5]
at org.quiltmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:243) ~[quilt-loader-0.17.4.jar:?]
... 16 more

https://modrinth.com/mod/pingspam/version/1.3.1+1.19.2 should fix this