Mod Error without any mod

Every time i try to create a game in get this error:

java.util.concurrent.CompletionException: NotifiableException(i18nKey=mod.errorUpdatingMods, i18nArgs=[])
at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.lambda$doSubmit$3(AsyncExecutionAspectSupport.java:281)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: NotifiableException(i18nKey=mod.errorUpdatingMods, i18nArgs=[])
at com.faforever.client.mod.ModService.writeActiveMods(ModService.java:349)
at com.faforever.client.mod.ModService.overrideActivatedMods(ModService.java:305)
at com.faforever.client.mod.ModService.updateAndActivateModVersions(ModService.java:411)
at com.faforever.client.mod.ModService$$FastClassBySpringCGLIB$$aae9cfd3.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)
at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.lambda$doSubmit$3(AsyncExecutionAspectSupport.java:278)
... 4 more
Caused by: java.nio.charset.MalformedInputException: Input length = 1
at java.base/java.lang.String.throwMalformed(String.java:1240)
at java.base/java.lang.String.decodeUTF8_UTF16(String.java:1191)
at java.base/java.lang.String.newStringUTF8NoRepl(String.java:728)
at java.base/java.lang.String.newStringNoRepl1(String.java:756)
at java.base/java.lang.String.newStringNoRepl(String.java:738)
at java.base/java.lang.System$2.newStringNoRepl(System.java:2390)
at java.base/java.nio.file.Files.readString(Files.java:3369)
at com.faforever.client.mod.ModService.writeActiveMods(ModService.java:331)
... 13 more

btw, i've deleted the mod folder (next the complete Supreme Commander Forged Alliance folder) , but still the same error

It is an error with the encoding of the prefs file. It sometimes is utf8 and sometimes ANSI

i get the same error

Get the same error here as well when I try to create a game.
It does not matter which mods I have selected, even without any mods this happens.
Using game client 2022.11.0.

Where is this prefs file mentioned above? Can it be fixed?

java.util.concurrent.CompletionException: NotifiableException(i18nKey=mod.errorUpdatingMods, i18nArgs=[])
at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.lambda$doSubmit$3(AsyncExecutionAspectSupport.java:281)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: NotifiableException(i18nKey=mod.errorUpdatingMods, i18nArgs=[])
at com.faforever.client.mod.ModService.writeActiveMods(ModService.java:349)
at com.faforever.client.mod.ModService.overrideActivatedMods(ModService.java:305)
at com.faforever.client.mod.ModService.updateAndActivateModVersions(ModService.java:411)
at com.faforever.client.mod.ModService$$FastClassBySpringCGLIB$$aae9cfd3.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)
at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.lambda$doSubmit$3(AsyncExecutionAspectSupport.java:278)
... 4 more
Caused by: java.nio.charset.MalformedInputException: Input length = 1
at java.base/java.lang.String.throwMalformed(String.java:1240)
at java.base/java.lang.String.decodeUTF8_UTF16(String.java:1191)
at java.base/java.lang.String.newStringUTF8NoRepl(String.java:728)
at java.base/java.lang.String.newStringNoRepl1(String.java:756)
at java.base/java.lang.String.newStringNoRepl(String.java:738)
at java.base/java.lang.System$2.newStringNoRepl(System.java:2390)
at java.base/java.nio.file.Files.readString(Files.java:3369)
at com.faforever.client.mod.ModService.writeActiveMods(ModService.java:331)
... 13 more

Same issue:
java.util.concurrent.CompletionException: NotifiableException(i18nKey=mod.errorUpdatingMods, i18nArgs=[])
at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.lambda$doSubmit$3(AsyncExecutionAspectSupport.java:281)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: NotifiableException(i18nKey=mod.errorUpdatingMods, i18nArgs=[])
at com.faforever.client.mod.ModService.writeActiveMods(ModService.java:349)
at com.faforever.client.mod.ModService.overrideActivatedMods(ModService.java:305)
at com.faforever.client.mod.ModService.updateAndActivateModVersions(ModService.java:411)
at com.faforever.client.mod.ModService$$FastClassBySpringCGLIB$$aae9cfd3.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)
at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.lambda$doSubmit$3(AsyncExecutionAspectSupport.java:278)
... 4 more
Caused by: java.nio.charset.MalformedInputException: Input length = 1
at java.base/java.lang.String.throwMalformed(String.java:1240)
at java.base/java.lang.String.decodeUTF8_UTF16(String.java:1191)
at java.base/java.lang.String.newStringUTF8NoRepl(String.java:728)
at java.base/java.lang.String.newStringNoRepl1(String.java:756)
at java.base/java.lang.String.newStringNoRepl(String.java:738)
at java.base/java.lang.System$2.newStringNoRepl(System.java:2390)
at java.base/java.nio.file.Files.readString(Files.java:3369)
at com.faforever.client.mod.ModService.writeActiveMods(ModService.java:331)
... 13 more

Isn't it this file?

Make up a backup before you delete, just in case.

The issue is that the file gets encoded as ANSI at some point and the client can't read it anymore

We may have found the source of this issue, and we'll try to fix it somewhere this week.