RunMacro with repeat expresion - problem with if statement

Hello dear coleagues,

I have a table "Table1" that have 6 records in "Test1" field and yes/now field "YN". I have a loop that ticks YN box and I want it to stop when amount of ticked boxes = amount of records

In repeat expression field I wrote

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But when I try to save there is error message "The runmacro macro has an invalid value for the repeat expression argument"

Any help would be appriciated!