Your message is not very clear. In any case, you MUST Disable GSX Jetway replacement files for every 3rd party airport you have.
- If you install a new scenery after GSX, you must do it again, to add the new scenery to the Disabled list
- If the scenery is not automatically recognized, because it doesn't respect the standard package naming convention, it must be added to the Disabled list manually by searching for its code.