34 days ago
I've had this problem with you before, but it was caused by our server's firewall blocking it!
So you could start by seeing if it's the server configuration.
Troubleshoot theme and plugin incompatibility: switch the default theme and deactivate plugins all together, activate one by one to troubleshoot.
If you use a caching plugin and CDN, you can clear the cache and refresh to see!
And then can not go to check the server error log.