[Vince]

If you'd follow the code path, you'd spot the obvious error very easily:

pawn Код:

countn[playerid]--;//The timer decreases from 10 to 0
if(countn[playerid]>=-1)
{
    KillTimer(timer[playerid]);
    //code[What your timer actually does]
}

- countn is decreased from 12 to 11.
- Reached if statement: if (11 >= -1) returns true
- KillTimer

You want point two to return false. So change the operator around from >= to <=.