ZGOTOTOOBIG, Cannot ZGOTO a level greater than present level
Run Time Error: This indicates that ZGOTO command specified a level greater than the current stack depth.
Action: Check the source of the level. The level argument of a ZGOTO indicates the depth the stack is to be after the ZGOTO, which cannot be greater than the current stack depth. The only way to increase stack depth is by performing DOs or XECUTEs.