Thanks for your response.
I do have an error log file but the contents make no sense.
First of all, it is from 2017 and at dubai not eddf where the error appeared last.
Anyway here you go:
couatl v3.2 (build 3859)
panic log started on Tue Nov 7 15:50:24 2017
problem raised by addon <unknown>
Traceback (most recent call last):
File ".\GSX\parkingDialog.py", line 412, in recreateObjects
File ".\common\modelCustomization.py", line 497, in setupJetwayModel
AttributeError: 'NoneType' object has no attribute 'checkedData'
{'Airport': 'OMDB', 'Requested assistance services at': 'Gate F 18', 'User Pos': (25.250131516440494, 55.360566944866214, 14.5065 m, 4.14351 m, 211.7129701511699)}