Application URL not working after upgrade from 7.8 to 7.14.2

Hello,
I am encountering following two issues:

  1. I get 'Application Not Found
    No application was found at this URL. Try going back or choosing an app from the menu.' when trying to access dashboards.
  2. See attached

kibana message

Could these be related? any ideas?

Thanks!

Blockquote

Could these be related? any ideas?

It shouldn't be. This message might affect only email links created by Alerting plugin

I get 'Application Not Found ... when trying to access dashboards.

Could you provide an example of a link? There have been several refactoring between these releases but we do our best to keep a URL valid.