I migrated my website https://angora.me from previous hosting to new cloud hosting (located in Jakarta).
When I check my website on Pingdom, GTmetrix, Uptrends, etc, some browser (Opera Mini) and location (Leipzig, Amsterdam, Sao Paulo, etc) got an error 522.
I know that error 522 is about server connection. But my resource usage is normal and stable for now. I have autoptimize and SSL fixer plugin installed. Also my current visitors are only about 100 - 200 visitors per hour.
When I visit through Opera Mini with normal mode, I can access without problem. But when I access with extreme mode, I got an error 522 again. Is it normal? How to fix it?