this problem happen again, i follow as u said diable = 0 under GSX...... then i restart FSX and it come out the same problem again and again.
Well, of course it happens if you disable it again, that was what caused it in the first place!
As discussed in all other threads about this error, the error is caused BECAUSE you disabled GSX. It's not fixed in any other way other than the one which has been discussed in the other threads, which is re-enabling it back.
We'll surely fix in a future update, so you won't assume this was some kind of bug but, the whole point is: why you would want to install GSX and then disable it ? The only reason to have a menu option to disable an addon, was to allow troubleshooting, not as a normal operation.
If you don't use GSX, you should uninstall it.
If you want to disable it on a specific airport for some reason, the proper way is to use the
disable_on_airports command in the Couatladdons.ini file, as explained at Page 23 of the GSX manual.
If you don't need it momentarily, just don't call it. It doesn't take ANY memory ( since it runs *entirely* externally from the sim ), if you don't call the objects.