Hello everyone I am new to the forum so greet all those who are part of it.

the indicator in question gives the opportunity to insert the bars to be scanned for the alert, the problem is that if I insert a number of bars higher than the history, the indicator no longer updates or even disappears.
I tried to modify it and I deleted some include files that didn't do much good.

Anyone know how to fix this?
I saw that there are some very good programmers in the forum ...