Antivirus programs often flag trainers as "GameHack" or "Malware" due to how they inject code.
Avoid these if you see the "trainer fix" error: resident evil revelations 2 trainer fix
The most frequent cause of a trainer "failing" is a version mismatch. Revelations 2 received numerous updates (v1.0 through v5.0) as episodes were released. Antivirus programs often flag trainers as "GameHack" or