How to resolve invalid range instance error in Excel plugin?

You need to close all the sheets opened at your end and then clear your cache memory.

  1. Click Wrench icon (at the top right of the browser)..>Select the option Tools..>Click 'Clear Browsing Data'..>Mark 'Empty the cache' option..>Click the button 'Clear Browsing Data'
  2. The keyboard shortcut is Shift+Ctrl+Delete.
Once you have done the same, please open a single sheet and then try to send the messages.
For further help reach us at [email protected].