Has closing several of its services started to adversely affect Yahoo mail ?

I wonder if the reorganising and closing of several services that is going on at Yahoo, is affecting the stability of its mail services, or it really is, as they just say, a temporary error.

I’ve seen this error several times last week, I took a screenshot, anyone has any idea what this is about ?

The supposed help page link on the error message that appears, leads to anything but relevant information, I wonder if someone else has any clues as to how to fix this ?

Experiencing technical difficulties or maybe the closing of several of its services, has started adversely affecting Yahoo mail ?