The game crashed whilst initializing game Error: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at net.minecraftforge.fml.javafmlmod.FMLJavaModLanguageProvider$FMLModTarget.loadMod(FMLJavaModLanguageProvider.java:78) ~[?:31.2] {re:classloading}
    at net.minecraftforge.fml.ModLoader.buildModContainerFromTOML(ModLoader.java:251) ~[?:?] {re:classloading}
    at net.minecraftforge.fml.ModLoader.lambda$buildMods$27(ModLoader.java:231) ~[?:?] {re:classloading}
    at net.minecraftforge.fml.ModLoader$$Lambda$2258/294651011.apply(Unknown Source) ~[?:?] {}
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[?:1.8.0_51] {}
    at java.util.HashMap$EntrySpliterator.forEachRemaining(HashMap.java:1683) ~[?:1.8.0_51] {}
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512) ~[?:1.8.0_51] {}
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502) ~[?:1.8.0_51] {}
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[?:1.8.0_51] {}
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_51] {}
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[?:1.8.0_51] {}
    at net.minecraftforge.fml.ModLoader.buildMods(ModLoader.java:233) ~[?:?] {re:classloading}
    at net.minecraftforge.fml.ModLoader.lambda$gatherAndInitializeMods$19(ModLoader.java:189) ~[?:?] {re:classloading}
    at net.minecraftforge.fml.ModLoader$$Lambda$2255/258860422.apply(Unknown Source) ~[?:?] {}
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[?:1.8.0_51] {}
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[?:1.8.0_51] {}
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374) ~[?:1.8.0_51] {}
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512) ~[?:1.8.0_51] {}
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502) ~[?:1.8.0_51] {}
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[?:1.8.0_51] {}
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_51] {}
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[?:1.8.0_51] {}
    at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:191) ~[?:?] {re:classloading}
    at net.minecraftforge.fml.client.ClientModLoader.lambda$begin$2(ClientModLoader.java:97) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraftforge.fml.client.ClientModLoader$$Lambda$2125/87035052.run(Unknown Source) ~[?:?] {}
    at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:113) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraftforge.fml.client.ClientModLoader$$Lambda$2126/1091597918.run(Unknown Source) ~[?:?] {}
    at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:97) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.<init>(Minecraft.java:392) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.main(SourceFile:166) [?:?] {re:classloading}
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
    at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.15.2-31.2.57.jar:31.2] {}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$426/1816397102.call(Unknown Source) [forge-1.15.2-31.2.57.jar:31.2] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.2.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.2.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.2.jar:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.2.jar:?] {}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.2.jar:?] {}
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_51] {}
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_51] {}
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_51] {}
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422) ~[?:1.8.0_51] {}
    at net.minecraftforge.fml.javafmlmod.FMLJavaModLanguageProvider$FMLModTarget.loadMod(FMLJavaModLanguageProvider.java:73) ~[?:31.2] {re:classloading}
    ... 40 more
Caused by: net.minecraftforge.fml.ModLoadingException: Inventory Pets has class loading errors
§7net.minecraft.tags.ItemTags.func_199903_a()Lnet/minecraft/tags/ITagCollection;
    at net.minecraftforge.fml.javafmlmod.FMLModContainer.<init>(FMLModContainer.java:77) ~[?:31.2] {re:classloading}
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_51] {}
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_51] {}
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_51] {}
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422) ~[?:1.8.0_51] {}
    at net.minecraftforge.fml.javafmlmod.FMLJavaModLanguageProvider$FMLModTarget.loadMod(FMLJavaModLanguageProvider.java:73) ~[?:31.2] {re:classloading}
    ... 40 more
Caused by: java.lang.NoSuchMethodError: net.minecraft.tags.ItemTags.func_199903_a()Lnet/minecraft/tags/ITagCollection;
    at com.inventorypets.InventoryPets.<clinit>(InventoryPets.java:601) ~[?:1.16.5-2.0.15] {re:classloading}
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_51] {}
    at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_51] {}
    at net.minecraftforge.fml.javafmlmod.FMLModContainer.<init>(FMLModContainer.java:71) ~[?:31.2] {re:classloading}
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_51] {}
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_51] {}
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_51] {}
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422) ~[?:1.8.0_51] {}
    at net.minecraftforge.fml.javafmlmod.FMLJavaModLanguageProvider$FMLModTarget.loadMod(FMLJavaModLanguageProvider.java:73) ~[?:31.2] {re:classloading}
    ... 40 more

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

-- Head --
Thread: Render thread
Stacktrace:
    at net.minecraftforge.fml.javafmlmod.FMLJavaModLanguageProvider$FMLModTarget.loadMod(FMLJavaModLanguageProvider.java:78)
    at net.minecraftforge.fml.ModLoader.buildModContainerFromTOML(ModLoader.java:251)
    at net.minecraftforge.fml.ModLoader.lambda$buildMods$27(ModLoader.java:231)
    at net.minecraftforge.fml.ModLoader$$Lambda$2258/294651011.apply(Unknown Source)
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    at java.util.HashMap$EntrySpliterator.forEachRemaining(HashMap.java:1683)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
    at net.minecraftforge.fml.ModLoader.buildMods(ModLoader.java:233)
    at net.minecraftforge.fml.ModLoader.lambda$gatherAndInitializeMods$19(ModLoader.java:189)
    at net.minecraftforge.fml.ModLoader$$Lambda$2255/258860422.apply(Unknown Source)
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
    at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:191)
    at net.minecraftforge.fml.client.ClientModLoader.lambda$begin$2(ClientModLoader.java:97)
    at net.minecraftforge.fml.client.ClientModLoader$$Lambda$2125/87035052.run(Unknown Source)
    at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:113)
    at net.minecraftforge.fml.client.ClientModLoader$$Lambda$2126/1091597918.run(Unknown Source)
    at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:97)
    at net.minecraft.client.Minecraft.<init>(Minecraft.java:392)

-- Initialization --
Details:
Stacktrace:
    at net.minecraft.client.main.Main.main(SourceFile:166)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51)
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$426/1816397102.call(Unknown Source)
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)

-- System Details --
Details:
    Minecraft Version: 1.15.2
    Minecraft Version ID: 1.15.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 1730394872 bytes (1650 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
    CPUs: 12
    JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    ModLauncher: 5.1.2+70+master.2845bb9
    ModLauncher launch target: fmlclient
    ModLauncher naming: srg
    ModLauncher services: 
        /mixin-0.8.2.jar mixin PLUGINSERVICE 
        /eventbus-2.2.1-service.jar eventbus PLUGINSERVICE 
        /forge-1.15.2-31.2.57.jar object_holder_definalize PLUGINSERVICE 
        /forge-1.15.2-31.2.57.jar runtime_enum_extender PLUGINSERVICE 
        /accesstransformers-2.1.3-shadowed.jar accesstransformer PLUGINSERVICE 
        /forge-1.15.2-31.2.57.jar capability_inject_definalize PLUGINSERVICE 
        /forge-1.15.2-31.2.57.jar runtimedistcleaner PLUGINSERVICE 
        /mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE 
        /forge-1.15.2-31.2.57.jar fml TRANSFORMATIONSERVICE 
    FML: 31.2
    Forge: net.minecraftforge:31.2.57
    FML Language Providers: 
        [email protected]
        minecraft@1
    Mod List: ~~ERROR~~ NullPointerException: null
    Launched Version: 1.15.2-forge-31.2.57
    Backend library: LWJGL version 3.2.2 build 10
    Backend API: NVIDIA GeForce GTX 1650 SUPER/PCIe/SSE2 GL version 4.6.0 NVIDIA 496.49, NVIDIA Corporation
    GL Caps: Using framebuffer using OpenGL 3.0
    Using VBOs: Yes
    Is Modded: Definitely; Client brand changed to 'forge'
    Type: Client (map_client.txt)
    CPU: 12x 11th Gen Intel(R) Core(TM) i5-11400 @ 2.60GHz



Could somebody help me with this?