Hi Umberto,
Below is the Couatl error report when I was 11nm out of Rwy 20 at Lisbon in FS Labs Concorde in P3D v5.3HF2.
couatl v5.0 (build 6224)
panic log started on Thu Jan 22 13:08:41 2026
problem raised by addon <unknown>
[01:53:43.703] Traceback (most recent call last):
[01:53:43.703] File ".\common\criticalsection.py", line 23, in _synchronized
[01:53:43.703] File ".\GSX\__init__.py", line 2145, in checkAirplane
[01:53:43.703] File ".\GSX\__init__.py", line 2072, in _updateAirportDetection
[01:53:43.703] File ".\GSX\__init__.py", line 2488, in onEnteredAirport
[01:53:43.703] AttributeError: 'Airport' object has no attribute 'userCanCustomize'
{'User Pos': (38.92958719689497, -9.056417565095563, 915.306 m, 666.262 m, 205.39536114141404, -0.19159989058971405, -0.0, -0.004045655501218528, 3.5052000000000003, 0.0), 'Airport': 'EGCB', 'Requested parking services to': 'Gate 44', 'Requested assistance services at': 'Gate 44'}
[01:53:52.828] GSX SimStop
The message is odd because I departed from Gate 44 at EGCC Manchester and didn't select a parking position at LPPT whilst airborne.
I opted to restart Couatl and all was well thereafter. I selected the parking position but didn't opt for the FolllowMe as I had taxi guidance from Aivlasoft EFB.