Unexpected token in expression

Hello,

Has anyone encountered this kind of issue?

image.png1513×272 24.4 KB

It was working before and in the last 3 days, it is returning this error intermittently.
Sometimes it says “Unexpected token t in express”.
I have also tried to rename the GET variable. Before it has an underscore ( _ ).
I can’t keep on renaming the GET variables as this will need some changes on the page.

Any advice?

Thank you.