Illegal chars in path in debug log

[RowanSkie]

Describe the bug
Mod reports an error in debug mode, saying "Illegal chars in path".

To Reproduce
Steps to reproduce the behavior:
Run the game with mod and open debug log.

Expected behavior
Virtually no errors.

Screenshots

Versions:

• Game version: 1.3.3389
• Mod version: July 31 Steam update

Additional context
The screenshot shows only RimVali stuff with Hugslog, Betterlog, and Harmony installed.
EDIT: Forgot the log: https://gist.github.com/2166644c039becf21936a2c8df63f068