Thanks for answering!
This is weird, I swear yesterday there was only that error again and again (it seemed to happen every time a banner would rotate, because they stacked in the console as time went by) but now it only happens every now and then and when it happens, it does only once.
There’s another javascript error happening in the frontpage sometimes that is cannot call methods on isotope prior to initialization; attempted to call 'layout'
but that seeems to be unrelated to the plugin, they’re template functions.
It could be related to caroufredsel not loading properly yesterday for some reason and now it only happens if for some reason the plugin functions load and start before the caroufredsel functions have loaded.
In short I can’t put my finger on what and when it’s failing and it doesn’t seem to cause any problems so… I’ll get back to you if I collect any more info.