Error 520 !Web server is returning an unknown error

Trang web của tôi Lỗi 520! Máy chủ web trả về lỗi không xác định. Các bạn nhanh tay giúp mình với, mình thấy host của mình không có lỗi gì cả

This is caused by an interaction between Cloudflare and your Host. We don’t have access to see that interaction, but your host and Cloudflare Support does.

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 is that either a program, cron job, or resource is taking up more resources than it should causing the server not to be able to respond to all requests properly.

Review the Quick Fix Ideas in this Community Tip for troubleshooting suggestions.

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