Error in the calculator on OS X, how to fix it?

Question

macOS

Hi. in notifications I have a calculator widget. everything works fine, but every time you open notifications in the calculator, the number 5300 appears. where it came from is not clear. before each use of the calculator, you must first erase 5300 and then do the calculations.
I tried deleting and adding the widget again - it did not help.

Answer 1

https://discussions.apple.com/thread/8090878