1
No worries this will get sorted out in few ours, most Europeans are now in bed so hang in there til new business day arrives here.
There was a website update regarding the shopping cart and maybe there is some unknown bug popping up now, CGtrader team will definitely get back to you to sort this out, just hang on a bit ;-)
You can use customer support below to report your issue but it will probable be unmanned til morning (approximately 6 hours from now).