@petzi:
- Exit from CALM.
- CALM gets the library list from the history that Calibre keeps. So, if there are "bad" libraries, in Calibre go to: Library icon > Remove Library > and remove any spurious library names such as 00, 01, 02, etc.
- Run CALM
- Go to the Source Libraries Tab
- Check the good libraries, and uncheck the bad libraries.
- Erase all "unchecked".
- Then save.
- Then manually add whatever libraries you are missing, if any. You can key in whatever you want. The automated population from Calibre's history is just a convenience. You can delete whatever you do not want simply by unchecking it and clicking "erase all unchecked". Or, manually, blank them out. Save.
Until your list of Source Libraries is good, everything else will be wrong. Do not leave the Source Library Tab until it is correct. The first step is the Source Library Tab. That it why it is the first Tab.
The Original Posts mentions OSX as regards calibredb. Be sure to read that and to install the Calibre command line programs per those instructions. CALM will fail quickly if calibredb has not been installed.
DaltonST