Backend Checkout Mask crashed

-- url of the page with the problem -- : www.bof-shop.at
-- HikaShop version -- : 4.3.0 Essential
-- Joomla version -- : Joomla! 3.9.21 Stable
-- PHP version -- : 7.4.7
-- Browser(s) name and version -- : Firefox 78.3.0esr (32-Bit)

Hello Guys
Unfortunately the backend of my checkout crashed. Please have a look to the picture to see what happend (Sorry for the german).


I am absolutely helpless with this topic so I hope some of you what to do.

I already installed hikashop again (without delete it before) .
My shop went online yesterday but I dont't like the current workaround for the checkout

Thank you very much !!
Cheers
Markus

Hi,

You turned on the "checkout legacy" setting in the Advanced tab, which activates the old checkout system of HikaShop and thus you also get the old checkout workflow editor interface.
Turn back off that setting and you'll go back to the new checkout.