Actually i have a similar problem like above. It started with updating the database after buying a few new airports. After updating, the EFB was saying, that KJFK is not a known airport is in database. I reinstalled server and client, tried again the DB Builder and same problem. Tried different Installationpaths after this but every time the same problem. Curious is that when the DB Builder creates a new DB, a window pops up, "0 warnings and 2 errors", before the DB Builder has finished. Today I noticed, that the comservices.bin is not found and the database is missing.
Client_202310061659.txt.zip Server_202310061659.txt.zip