errorcatcher
nounUK /ˈerəˌkætʃə/
US /ˈerərˌkætʃər/
A helper that finds mistakes and fixes them.
The errorcatcher stopped the game from crashing when I typed the wrong word.
OTHER MEANINGS
2. A tool that watches for problems and warns you.
The errorcatcher beeped when the robot bumped into the wall.
3. A person whose job is to find and correct mistakes.
She works as an errorcatcher for a big newspaper.
4. A safety feature that keeps a program from breaking.
Thanks to the errorcatcher, the app stayed open even after the bad update.