Hi @LesnyLud ,
Can you expand the get file content using path, and also translate the error message you are getting,
Based on that, We can help to pinpoint what could be the cause, My initial believe is probably that particular user didn't provide the adequate information needed for your flow run, Or your array variable for your photos needs to be looked at, to ensure for that failed user, it's actually picking the requested value.
Kindly feel free to like my post, so I can easily come back to the message once I get a response