Running in local

i am trying to run this in local docker . but unable to change language. it’s greyed out . on right side menu , i am getting the following error “Error: Nicht gefunden :…
Server error
Nicht gefunden : #AD_User_ID Expressions trace: Cached{(master.AD_User_ID=@#AD_User_ID@)}”


sounds like you are using the metasfresh user.
It is stored on the system tenant and is for config changes.
you can either try this existing user:
user: it
passwort: metasfresh

or create a new one:

Does this solve your problem?