I did as instructed by this pop-up error, and downloaded and installed the latest version of addon manager from the FS Dreamteam site. However this did not help my situation much.
The text from the error log is as follows (had it happen more than once, but only pasting this most recent one it's identical, except for the time.
couatl v2.0 (build 2360)
panic log started on Tue Jul 08 18:20:11 2014
problem raised by addon <unknown>Traceback (most recent call last):
File "couatl\common\fsm.py", line 67, in executeDoFuncToCompletion
File "couatl\GSX\assistanceServices\catering.py", line 191, in do
File "couatl\GSX\assistanceServices\baseAssistanceVehicle.py", line 205, in do
File "couatl\common\simObjectMoverIK.py", line 286, in run
RuntimeError: cruise speed must be positive
This happened when I clicked on "Request Deboarding" and you can see the vehicles spawn directly underneath my aircraft, for a second or two, and then this popup occurs. (I have noticed that when selecting "Request Boarding" the vehicles will spawn where they should, and then proceed to drive into my plane, and THEN this popup occurs).
I tried to dig through the forums a bit and see if I could find this same problem but wasn't able to find exactly this.
Hopefully something can be done to fix this.
Cheers!
Greg