Trying to access, for example:
(upload ~3.5 hours ago) returns:
Our servers are currently under maintenance or experiencing a technical problem. Please try again in a few minutes
[...]
Request from 2.29.195.22 via cp3061 frontend, Varnish XID 981081286
Upstream caches: cp3061 int
Error: 500, Internal Server Error at Tue, 14 Apr 2020 17:28:25 GMT
as does trying to access other sizes of the same image. This has been happening for over an hour.