Hello how are you people! Excuse me, how could I solve the inconvenience of my Revit, let me explain: From the first instance I used my program correctly, all the structures and commands worked, I inserted beams correctly, after that I began to design the structural project, placing footings and castles with structure but when trying to place the beams the problem occurred, I got a fatal error and it asked me to close the program, and to this day it is still a new project from 0 I try to insert the beams and it gives me the same error and it even closes without warning