Making an offer

A seller changed their listing so that I could make an offer but when I tried to make an offer there is an error message saying "there's an issue processing your request." I contacted the seller and they suggested I contact ebay. Has anyone encountered this issue? 

TIA

Fridays are always full of glitches due to it being 'eBay fiddle day'

 

Perhaps you could try again tomorrow and if it is still doing it, then contact eBay

Thanks so much, I'll give it a go!