Game crashes while loading StationAPI

[LiYeQWQ]

Failed to invoke the Minecraft main class:
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.multimc.onesix.OneSixLauncher.legacyLaunch(OneSixLauncher.java:146)
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:240)
at org.multimc.EntryPoint.listen(EntryPoint.java:143)
at org.multimc.EntryPoint.main(EntryPoint.java:34)
Caused by: java.lang.RuntimeException: Failed to read accessWidener file from mod station-flattening-v0
at net.fabricmc.loader.FabricLoader.loadAccessWideners(FabricLoader.java:396)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:131)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:27)
... 8 more
Caused by: java.lang.RuntimeException: Unsupported access widener format (v2)
at net.fabricmc.accesswidener.AccessWidenerReader.read(AccessWidenerReader.java:43)
at net.fabricmc.loader.FabricLoader.loadAccessWideners(FabricLoader.java:394)
... 10 more

[mineLdiver]

From what it looks like, you're not using Babric.

Install Babric and try again - https://babric.github.io