Welcome to our UiPath Forum!
It looks like your error message is:
“The given key was not present in the dictionary”
It happens when you are trying to reference a key that is not part of your dictionary. Please see similar topics, each with a post marked as a solution here:
That’s not true actually. I had that error popping up and I wasn’t using a dictionary. It was when I was reading and writing info in excel and I had to change the write to use the excel application scope to open the file and write the data. Didn’t change any variables or anything else, just changed the activity type.
I got the solution of that error.