Problem SAP changes the selectors and the robot is lost

selector
sap
studio

#1

I did a whole process in SAP to enter and export some data in excel the problem is that the tool sometimes works well but there are days that I did not, I started to review and it is that when the error occurs is that the selectors of the buttons are changed What am I using, someone has happened to him the same or does he know how to solve it?