Why can't I log in to the management after installation?Password reset does not work. I'm sure the username and password are correct, but after changing the password according to the forum instructions, I still can't log in.

Finally, the password 123456 still does not work, as shown in the figure, the MD5 password has been changed

hard to tell without any knowledge on your system or how you've installed froxlor etc. password reset for administrators is disabled by default and needs to be enabled in the settings explicitly.

Might be due to permissions to create the php session, verify that (in case of default mod_php installation) the files belong to the webserver user or in case of fcgid/fpm (if enabled)  to the local froxlorlocal user