The final error message blames Realistic Fusion Reactors. Does it work if you disable that mod?

I read a bit trying to look for the mods responsable for the error but even disabled 'Realistic Fusion Reactor' i have the same error message.
If i delete the config.ini and copy it back to the folder ...

Switched today from vanilla gameplay to my mod selections and this error started occurring...
Once I start Factorio it load all mods and when is loading the bitmaps there is this error and the game cant start until I delete config.ini
Now every time I want to play with mods I have to delete config ...

Would be a great feature to be able to group mods with a name (Create o Profile), so we can alternate with ease the types of gameplay we like !