Cursor cannot automatically modify code or operate on files

Yesterday, Cursor was still able to operate on code files as usual and help me program automatically according to my requirements. But today it’s not working anymore. When I ask it to make modifications on its own, it only gives me solutions without automatically programming like before. I don’t know what the problem is. Has anyone encountered this? How should I solve it?
This has caused catastrophic consequences, making it difficult for me to continue my programming career!