Comment on Massive Passive Profits Plugin Setting Up a Sub-Domain Blog Template with Talian 05 by SEO Dave.
When I went to your site the widget area was working fine, so you might have already fixed it.
I understand this widget error can occur when using the Massive Passive Profits Plugin and a sub-domains widgets don’t match the main sites widgets (having them not match shouldn’t cause a problem). One customer for example reported this problem, added a widget and the error was gone.
So not sure exactly what causes it, but messing around with widgets might fix it! I know not very technical and a case of “hope it goes away on it’s own” approach, but until I can replicate it (tried a lot of permutations to replicate) I can’t give a definitive answer.
BTW not a Talian 5 specific issue, this occurs with other themes and despite this I couldn’t find any useful information of it’s cause online!