User rights got super crazed, prevented me from changing them (even as an admin).
Removed entire FAF folder, reinstalled the client, restarted PC and the problem got resolved.
Thanks!

Hello,
when trying to create a game in client I get this error:

java.lang.RuntimeException: java.nio.file.AccessDeniedException: C:\ProgramData\FAForever\cache\featured_mod\bin\23324b059058641ff1594d39c2f67fa7 -> C:\ProgramData\FAForever\bin\ForgedAlliance.exe
at com.faforever.client.patch.SimpleHttpFeaturedModUpdaterTask.lambda$call$0(SimpleHttpFeaturedModUpdaterTask.java:94)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at com.faforever.client.patch.SimpleHttpFeaturedModUpdaterTask.call(SimpleHttpFeaturedModUpdaterTask.java:70)
at com.faforever.client.patch.SimpleHttpFeaturedModUpdaterTask.call(SimpleHttpFeaturedModUpdaterTask.java:29)
at javafx.concurrent.Task$TaskCallable.call(Task.java:1426)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.nio.file.AccessDeniedException: C:\ProgramData\FAForever\cache\featured_mod\bin\23324b059058641ff1594d39c2f67fa7 -> C:\ProgramData\FAForever\bin\ForgedAlliance.exe
at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:89)
at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103)
at java.base/sun.nio.fs.WindowsFileCopy.copy(WindowsFileCopy.java:209)
at java.base/sun.nio.fs.WindowsFileSystemProvider.copy(WindowsFileSystemProvider.java:284)
at java.base/java.nio.file.Files.copy(Files.java:1305)
at com.faforever.client.io.FeaturedModFileCacheService.copyFeaturedModFileFromCache(FeaturedModFileCacheService.java:64)
at com.faforever.client.patch.SimpleHttpFeaturedModUpdaterTask.lambda$call$0(SimpleHttpFeaturedModUpdaterTask.java:89)
... 8 more

Thank you!