COPS v.0.04 - HOW TO CONFIGURE IT?

Hello ,
i’ve positively installed PLEX SERVER on WDMC EX2 Ultra. Even Tautulli, so i can share my media within the home with the rest of the family ( and with the lockdown they’ve appreciated it)

I have no idea ho to configure COPS - CALIBRE.

As i ran CONFIGURE i’ve got all these errors

I’ve seek on the web for a guide, a brief step by step explanation how to configure, and what should i have to configure but i’ve found nothing.

Is there some good guy would share his experiences with me.
I’ll appreciate

Albert