[Youarex]

Use https://sampwiki.blast.hk/wiki/Fexist perhaps that solves the problem.

pawn Код:

if(!fexist(string2)) return printf("An error occurred, no such user exist: %s" string2);

Another solution https://sampforum.blast.hk/showthread.php?tid=175565

Now question; why do you need strmid? Age is supposed to be an integer.