It may be that the direct shutdown caused the [Site Domain Name Management] list of phpstudy to be cleared.

Question

Operation: Added a new domain name, modified the [General Port Directory] with the same parameters, and then shut down the computer without exiting the program.

After restarting, only the [General Port Directory] site I configured last was left in the Apache\conf\vhosts.conf file

Answer 1

You can reproduce the problem to determine whether it is caused by this