Steps to Reproduce
I got three mods from the steam workshop. I played 10 hours over 2 days. 3rd day I went again to the workshop and added 3 more mods. I opened the game to enable them. when i clicked on the mod menu button the error would appear
Status: Known Issue
We are aware of this issue and have it logged internally but either we do not have a fix ready yet or we are not planning on addressing the issue in the immediate future.