This would usually indicate that the script uses lists in an inappropriate manner, or possibly timers and similar in an insecure manner.
Although escaping these characters may seem to fix the problem, it really only hides it. A better solution would be to correct the cause of those issues.
Think you could provide some info on the script in question (source or location of source, etc)?
ultralord wrote:i use pwf.tcl but i edited.. but the script have problem when user add in pickup game if have { } character in his nick.. i cant fix that problem?
You edit a script and either create an error or stumble across one then, when given advice/links, do NOT bother to take said advice let alone actually READ anything or even make an effort.
rosc2112 gave you the link to a very readable solution that does require YOU to do something as a way of learning.