https://euipo.europa.eu/ohimportal/en/web/guest-staging/news/-/action/view/4053180
Content Reproduced verbatim from the Website of the European Union(EU) Intellectual Property Office as permitted under their Terms of Use.

EUIPO’s new back office will be rolled out this weekend on 24-25 February. During the roll out, all online filing applications of the EUIPO website will remain accessible.  However, sporadic outages may occur.