While loop is not working

return Number(${!csvReadLineNumber})+1 is not working
The thing is: It is not always an error. In this macro, it always can not run, but in other macro, it runs perfectly fine. Why?
How could I fix this? @admin @ulrich

Is it the same website in both cases? Also, have you tried 7.0.11?

Some websites e. g. Github block ExecuteScript. But the the logic in this ExecuteScript is so basic that you can/should use ExecuteScript_Sandbox instead anyway.

ExecuteScript_Sandbox can’t execute this script since V7. It’s exhausted. And yes, some website might block ExecuteScript since these 2 scripts are for 2 different websites.