The addon is causing.....

[RDhEnry]

couatl v5.0 (build 6021)
panic log started on Wed Aug 27 20:41:52 2025

problem raised by addon <unknown>
[00:00:28.688] Traceback (most recent call last):
[00:00:28.688]   File ".\common\criticalsection.py", line 23, in _synchronized
[00:00:28.688]   File ".\common\aircraftData.py", line 2711, in getAircraftData
[00:00:28.688]   File ".\common\aircraftData.py", line 1276, in __init__
[00:00:28.688] AttributeError: 'list' object has no attribute 'strip'
{'Airport': 'N15', 'User Pos': (39.20252452668677, -117.06631897082244, 1828.43 m, 1.74557 m, 269.7265919925981, -0.02903341941523406, 0.01745329238474369, -0.0071774737275551465, 2.1336, 1.0)}

[virtuali]

You don't say which airplane you are using, from the error message, it seems either the airplane or the livery has a duplicate title key.