Please help SSL expired on GCP

Hi we've got an openlitespeed wordpress deployment on Google Cloud Platform and as far as I can recall we've got a free SSL certificate assigned at installation.

However now it's been 3 months and the SSL has expired and we've got no idea how to renew and set an automatic renewal.

Please help, would appreciate it so so much!


Thank you guys so much for the help!

I'll try to restart the server first, but I'm just scared that it might delete the website. Should I back up before restarting or will it keep the wordpress site?