Report encryption with customer key error

[PVD123]

We are getting below same error while opening 5 reports in Power BI Service. The reports are connecting to single/multiple SharePoint/Jira datasources and refresh works fine in Power BI Desktop. Being Power BI Admin, we haven't encrypted/configured any Power BI Customer Key as of now.

After refreshing the report we are getting below error.

Can anyone help?

[PVD123 · Accepted solution]

 This issue was occurring because the key with which PBI Premium Capacity was encrypted was deleted from Keyvault. Issue got resolved after the key was restored to the KeyVault.