Superglue, napkins, and a larger screwdriver are not going to work
If you try whatever else you can think of and its still stuck youll probably have to go to that slot it and remove it with a small flat blade screwdriver idea.
There is plenty of room there to go in with a small hole enlarger bit sideways or a small round burring tip without damage to anything.
A good quality, exact fit, precision screwdriver in the beginning would have prevented this situation.