Usually caused by an error in c:\Users\Carlos Monge\.arduinoIDE\.arduino-cli.yaml and below should solve it.
- Close the IDE.
- Delete c:\Users\Carlos Monge\.arduinoIDE\arduino-cli.yaml.
- Start the IDE.
Notes:
- Please use code tags when posting this type of output; see post #2 (which described each step) and How to get the best out of this forum.
- You should have started your own topic; and it's not clever to post a problem in a topic that is solved.
I've created a dedicated topic for this.