Thanks
So my deprecated lazyness to type is the real bug of this code! :-)
I thank you also for the alternative to END to solve the issue so your main message to me is control the flow of your program! and you can do this control using canonical ways like END SYSTEM or alternative ways like the jump of GOSUB blocks.
I have found the deprecated STOP keyword that in an interpreted BASIC was useful for debug but here in QB64 is a duplicated of END.
It is not possible to write a modern code block (SUB/FUNCTION) before the Block of GOSUB!