If verification and cache clearing fail, a full reinstall may be needed. Uninstall via launcher, delete leftover folders in Documents/Trackmania/ and %PROGRAMFILES%/Ubisoft/ or Steam/steamapps/common/ , then reinstall.
Trackmania usually names the file in the error. Look for extensions: trackmania file corrupted
Trackmania, a popular racing game known for its high-speed gameplay and robust track-building community, has captivated gamers worldwide with its engaging and creative gameplay. However, like any complex software, it's not immune to issues, and one of the most frustrating problems players and track creators face is dealing with a corrupted Trackmania file. A corrupted file can lead to a range of issues, from simple annoyances like missing content to severe problems that prevent the game from running altogether. If verification and cache clearing fail, a full
Sometimes, the corruption is inside your Profile.Gbx file. This file stores your campaign medals, created horns, and buddy list. If this is corrupt, you won't even get to the main menu. Look for extensions: Trackmania, a popular racing game
If nothing works and you see "Trackmania file corrupted" immediately at launch, you need a full wipe.