Microsoft Office 365 Sharepoint issue

When i am logged in through the edit mode my web part displays fine. However when logged out the webpart displays the error below:

"Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Microsoft SharePoint Foundation-compatible HTML editor such as Microsoft SharePoint Designer. If the problem persists, contact your Web server administrator.

Correlation ID:e257e69c-4088-1000-abd0-78be016b1557"

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  Extra information: The template is a custom template however it has been fine until recently. There has been no changes to the site or environment. The issue has occurred before however resolved itself.

  
  


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  Anyone know how you can investigate on the colleration ID through Office 365

  
  

** Please note this is Sharepoint through office 365.