Solution to this error

How do I fix this error, it happens every time I open a saved .blend file and it keeps corrupting my files.

Sounds like a bug… Better report it…

I’m not sure what you mean by “corrupt” in this context, if it crashes Blender or breaks the file, then definitely report it on the bug tracker.

Just based on the error message it looks like a misconfigured keymap that tries to call an operator from the 3D View in the Timeline.

Also need to understand what caused this error.
By looking on screen it’s hard to understand, better to see on gif/video, or attach file.