ATC Incorrect Phraseology

For example, I have the Graz Airport from ORBX. The floor designations are one A. The ATC can also announce the correct taxi routes, but not to a gate. I’m flying the A320 and they want to send me to general aviation. At Payware Cologne yesterday, everything worked perfectly. It seems like only certain airports are affected. Is there any remedy here?
Sunny greetings from Germany