I did turn off my CardDAV Accounts during the break down of Murena. I wanted to enable it under macOS (V 12.7.6) today, but my password or my name were not accepted anymore. I believe I have to use the same password, which works for Mail and Notes with a CalDAV account.
On my iPad, the CardDAV account seems to have been enabled all the time. When I tried the known password there today, it broke too. The synching still works to my phone.
I believe I have to enter the following
account type: manual
user name: my email address
server address: murena.io
password: my one and only Murena password
In the nextcloud documentation I found instead, that a token has to be used as password. I created one in the Murena dashboard, but it did not halp either.
(Synchronizing with macOS — Nextcloud latest User Manual latest documentation)
Any ideas?