A problem can occur when you just unzip the folder and then copy the unzipped folder into the NODS folder and have choosen "wrong" unzip choiche. Then you can have two folders with the name on the mod
Check that in the MODS folder there are no doubble folders. Example:
MODS/Bordinstrumente 1.0/data/...
and NOT MODS/Bordinstrumente 1.0/Bordinstrumente 1.0/data/...
I hope you understood what I mean