OK, I encountered something like forgetting my password.
I searched online for a long time and couldn't find a solution.
Then I found the password reset tool on the official website, and now I’ll keep a backup.
As for the usage tutorial.
1) Download the reset tool decompression package and upload the resetpw.php file directly to the root directory of the website after decompression;
2) Directly access the file address in the browser, and then enter the relevant information according to the page prompts to reset. The "database configuration file" filled in here is used to reset the tool connection data. If no special changes have been made, the default is generally sufficient. Then enter the account and new password to be reset. Be sure to delete the tool after resetting. Remember! ! ! ;