unknown error

[Angelo2449]

Hello everyone,
in the code I'm writing, I'm getting a mistake that drives me crazy!
I load the code, I follow it, everything works nicely!
I try to do it again and get this message:
command: error: wrong function: 13.1187
useless to say that the function does not exist, at least I do not find it.

if I load the code again and follow it, everything works perfectly ..... until the next execution.
once yes, the other no!
What the hell did I do?
Thank you.
(do not publish the code as too long)

 

[Angelo2449]

I found out the reason for the problem!
the code provided for the use of a variable having the same name as a procedure.
at its activation, the problem appeared, the new code loading the variable was reset and the problem solved.
it was enough to change the name of the variable!
Thanks anyway.