[ERROR] serial.no is missing VPS Server

Today when I woke up my website was not working, when I entered the cyberpanel to check, I got an error with the litespeed license.

root@vmi1304691:/usr/local/lsws# sudo /usr/local/lsws/bin/lshttpd -r
[ERROR] Invalid serial number!
[ERROR] serial.no is missing!

what can i do in this case?

I solved it by installing the cyberpanel from scratch.