SharePoint Online - Facebook feed showing "Sorry, something went wrong" for some users

Hi,

I am facing an issue on SharePoint online: We use Script Editor web part on classic SharePoint experience to develop a Facebook feed(getting feed only), but only for some users it shows the system style error message "Sorry, something went wrong.An unexpected error has occurred.", and right before it appears, the page kind of refreshes by itself.  When I check the browser's console output after the error shows up, it has a lot of error messages generated from the system debugger: VM869, such as:

"ErrorPage.OnMessage: Origin=https://portal.office.com, Data={"command":"Query","errorCode":0,"errorMessage":null,"postMessageId":"SP.RequestExecutor34","responseAvailable":true,"statusText":"","statusCode":200,"contentType":"application/json; charset=utf-8","allResponseHeaders":"strict-transport-security: max-age=31536000\r\ncontent-encoding: gzip\r\nx-content-type-options: nosniff\r\nx-aspnet-version: 4.0.30319\r\nx-powered-by: ASP.NET\r\nx-frame-options: SAMEORIGIN\r\ncontent-type: application/json; charset=utf-8\r\nstatus: 200\r\ncache-control: no-store\r\ndate: Thu, 15 Mar 2018 23:29:30 GMT\r\nx-msedge-ref: Ref A: F11E7F0699E14875BC3B7B6F29156358 Ref B: SYD03EDGE0313 Ref C: 2018-03-15T23:29:31Z\r\nvary: Accept-Encoding\r\ncontent-length: 122\r\nx-ua-compatible: IE=Edge\r\n","readyState":3,"binaryStringResponseBody":false,"responseText":""}"

But for many other users, it doesn't show up. The javascript code that we wrote is getting Facebook feed from https://graph.facebook.com with token. Any idea why it's happening?

Thanks, 

Ares