Hey everyone,
im quite new to Power Apps and currently facing a Problem. Im trying to implement a button which should increase the value of the selected Item by 1.
My OnSelect Formular looks like this:

Error Message: Invaild Argument, expecting Boolean, Number, Text..
I didn't build the formular myself, i found it somewhere and tried to adapt it, but couldn't get it working. I tried to add ".value" and "ThisItem." together with the column name, but it only resulted in different errors.