I personally was getting and i am still on zippyshare with three VPNs and only affects UK ips, i did open a ticket on the same day 8th march with no reply ...... After a little search it seems UK data centres have been blacklisted from 8th march 2019 and was a " mistake " and unresolved
https://en.wikipedia.org/wiki/List_of_websites_blocked_in_the_United_Kingdom