Can someone help me resolve the Word online error SP Online shown in below screenshot?

2018-05-16 19:52:06

I am trying to open a word file in Word online and I am getting the below error. This happens in all browsers. I am working with SharePoint online/Office 365 and cant really find a solution for this, can someone help me resolve this.

Please note that the document is editable in word desktop not in the online version.