Cannot login , wrong password . Cannot reset / no email configured

Configured Nextcloudpi / nexcloud on my OMV 5 .

After a while stopped working. Tried to go through again , but CANNOT LOG IN .
It says wrong password.
So , cannot reset password / no email was configured.

Tried to reset with OCC , couldnt : occ cannot be started with putty command line …
I searched with WinSCP , there is no nexcloud directory in the /var/www folder on my server ??!!

So , I am stuck , cannot use nexcloud .

Any help , please?