Error REP-500109 on generate report block

[AmelieF]

Hi,

I've build an automation to create reports and send it by mail.

I have a list variable with 7 values. I use a loop to go through this list, store the current value in a variable and use it to create a report with a selection equals to the value store in the variable. Then I generate the report.

The automation and loop work correctly exept the fact I randomly have an error on the generate report block.

I say randomly because if I run the automation twice, the error will be on a different value of the loop.

An idea of what is this error and how to fix it ?

Thanks,

Amélie