I'm sorry but, your screenshot are too garbled to be readable and, from a single screenshot is not possible to be sure the parking is correctly connected, sometimes you need to check all nodes that lead to it, one by one, to discover the error. Or, run the ADE "Fault Finder" tool to get a report of problems.
Also, is GSX reading that AFCAD ?
It's possible the scenery has been updated, some gates changed, but you already made a GSX profile for it, customizing a gate that might not exists anymore, or has been changed/moved/renamed ?
And, are you using a GSX profile you made, something you downloaded or does it came with the scenery ?
The GSX scenery customization page, of course, will tell you all of that, as in:
- The AFCAD currently in use by GSX
- If you have GSX profiles active, and if they are designer-provided or user-made.