need help running scripts!

[Penguin360]

everytime i go to run a script is always comes up with "Unknown identifier 'IsTextAt2' in script C:\Program Files\SCAR 3.10\includes\boxbreaker2.txt" or something similar, i followed the tutorial too on opening scripts and yes i updated.
The version of scar that i am using is Divi 3.10 and the SRL version is 381 (i don't know what SRL even is) as you have prolly gethered i am new and i am prolly annoying too lol can someone plz help though

 

[Town]

Get a new script, that one won't work anymore.