Server Error in ‘/x’ Application – Excel Web App Error – Solution

Problem:
All of a sudden, Office Web Apps Excel Web App stopped working and gave this Runtime error message on opening Microsoft Excel files from SharePoint 2013:
Server Error in ‘/x’ Application.

SharePoint Office Web Apps Server Error in '/x' Application

Solution: 

This occurs due to the public key which connects to the WOPI application, such as the Office Web Apps Server to the SharePoint farm going out of sync! To resolve the issue, Run from any SharePoint Server:  
Update-SPWOPIProofKey

Salaudeen Rajack

Salaudeen Rajack - SharePoint Expert with Two decades of SharePoint Experience. Love to Share my knowledge and experience with the SharePoint community, through real-time articles!

5 thoughts on “Server Error in ‘/x’ Application – Excel Web App Error – Solution

  • Thanks a lot. you are a savior!

    Reply
  • Thank you! it resolved the issue.

    Reply
  • Thanks a lot.

    Reply
  • Thnx a lot. It helped on time!!

    Reply

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