[Andre02]

Satek told you everything, to solve your problem you need to create the variable.
When "undefined symbol "symbol"" comes up ,it means that the "symbol" is not created so you will have to create it and to create you need to add it on your code like that:

pawn Code:

new symbol; // symbol created

The undefined symbol is "objectid" ,so you will have to create it.
I will let you do it, so you can learn it by yourself.

I am also a beginner so if someone that know better then me see something that is wrong just tell me so i also learn.