Script error doesnt specify what error is in script

I am trying following script to scan stocks

(REF(HIGH,1) - REF(CLOSE,1)) * (100/REF(HIGH,1))) < 1

It gives error your script has error. How do I check which part of script has error ?

Try checking the brackets, I think it is an issue with that. There is an extra closing bracket.

(REF(HIGH,1) - REF(CLOSE,1)) * (100/REF(HIGH,1))) < 1

I think there is an extra closing bracket at the end. So, based on what you want to do, make the changes to the opening and closing bracket.