Unable to execute JS script

Hi,

Recenlty i am trying to invoke JS Script in my process but i am ended with error hence i would like request our Forum mates help here.

My javascript is :- javascript:__doPostBack(‘dgCust$ctl03$ctl00’,’’)
Exception is :- “SyntaxError: Unexpected token ‘:’”

My Uipath product is :- 2020.4.1