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When I upgraded from Vanilla 1 to Vanilla 2.3 several years ago, I setup two small panels to display two buttons (a translate link and a Paypal donate link)
Since upgrading to Vanilla 2.5.1 the panels now display too large and the buttons no longer work.
Stupidly I seem to have lost my notes explaining how I set them up in the first place so of course I'm now struggling to correct the issues. I'm pretty sure I setup a "Message Module" but can't find any reference to it so I can make changes. I no longer need the translate button but the Paypal donate button needs to work. Here is a screenshot of the panels as they display at the moment.