zoho mail error message - Something went wrong while updating your app. Please try again later. ( Details: Error: Cannot update while running on a read-only ... )

zoho mail error message - Something went wrong while updating your app. Please try again later. ( Details: Error: Cannot update while running on a read-only ... )

Hi 

this message keeps coming up when opening mail or changing folders on desktop mail. 

Something went wrong while updating your app. Please try again later. 

( Details: Error: Cannot update while running on a read-only  ... )



please help?