I fixed them but still getting error with GSX.
Then you haven't fixed them all. Not all errors are reported by ADE or AFX.
And, it's not clear if you posted here because you ALSO tried to create a custom Pushback to reproduce that procedure indicated in the above chart, or if you simply had issues with standard Pushback.
Because, if you tried to create a custom Pushback, and you get errors (but the standard Pushback from GSX works), there must be some problem in the coordinates you set but, as I've said above, it's not possible to help you without checking the AFCAD itself.
Or, at least, without known WHICH errors you get from GSX.
I am using FSaddon LLBG. I am not sure if I can upload the afcad because of copyrights...
Send it to me by email. I'm sure there are no copyright issues in this case, since I wouldn't have the rest of the airport.