Yes, I see the problem. I don't have an old 7.7 Version of GSAK to test in, only V8. This should be fixable for now for V7.7, although soon I'm going to stop trying to support 7.7, it's too limiting.
Try changing line 60 to:
Now in place in V4.4 here.
Try changing line 60 to:
GSK |
NOERROR commands=PREPROCESS;Deprecated SysVar=$_StartShift |
Now in place in V4.4 here.