Web server is returning an unknown error Error code 520

[Exio]

I suddenly got the error message; “Web server is returning an unknown error Error code 520”.

Website url: www.osmunited.com

Could you help me figure this issue out? Thanks in advance!

[arunesh90]

Have you already checked out the community tip for 520 errors?
It includes some troubleshooting steps you could give a try:

Community Tip - Fixing Error 520: Web server is returning an unknown error

Error Try the suggestions in this Community Tip to help you fix “Error 520: Web server is returning an unknown error”. Background Error 520 is essentially a catch-all response when something unexpected happens or when the origin server incorrectly interprets or does not tolerate a request due to a protocol violation or an empty response. A 520 error occurs when the connection started on the origin web server, but that the request was not completed. The most common reason why this would occur …

[Exio]

I’ve tried the steps but they didn’t work for me