It’s possible that the mod you installed is causing the game to crash when launching.
This can sometimes happen with external mods, such as the Moaning Mod or the AI Chat Mod, since they rely on external loaders.
If the mod you installed is not an external mod, then the issue may be related to your local game files.
Since reinstalling the game did not solve the problem, you can try completely removing the local game data and then reinstalling the game again.
Usually, MDRG saves and local data are stored here:
C:\Users\(Your Username)\AppData\LocalLow\IncontinentCell\My Dystopian Robot Girlfriend
If you delete everything in that folder and then reinstall the game, it may resolve the issue.
If you need further help, feel free to ask, and we will try to help you.