Unable to Reach Back-end

I'm trying to configure the CRM for multiple projects/workspaces. I've added the following variable to my .env file: IS_MULTIWORKSPACE_ENABLED=true However, no matter what I try, I can't move forward with the configuration. Regardless of the value I set for the SERVER_URL variable, I always encounter an error. I saw in some older posts that a few people resolved this by setting https://youraddress.com as the SERVER_URL, but when I insert my own domain, I get this error: Unable to Reach Back-end – Failed to fetch Could someone please help me out?