In the context of Arma Reforger , "trainers" are third-party software tools used to enable cheats or modifications in single-player or local modes, such as infinite health or ammo. These tools often break when the game receives an official update, such as the recent 1.7 Update

1. Update the Trainer: Ensure you're using the latest version of the trainer, as developers often release updates to fix bugs and improve compatibility.
2. Verify Game Files: Check the integrity of your game files to ensure they're not corrupted or missing. This can be done through the game's launcher or platform (e.g., Steam).
3. Disable Anti-Virus Software: Temporarily disable your anti-virus software to prevent interference with the trainer.
4. Run the Trainer as Administrator: Run the trainer with administrative privileges to ensure it has the necessary permissions.
5. Disable Conflicting Mods: If you're using mods, try disabling them to see if they're causing conflicts with the trainer.
6. Reinstall the Trainer: Try reinstalling the trainer to start with a clean slate.

The "Early Access" Feel: Despite being out of official early access, many reviewers still describe it as feeling like a developing platform where "upkeeping mods is not the devs' responsibility," leading to frequent community-led troubleshooting [3, 21].

If you've made changes to the trainer settings, try resetting them to their default values.