
Sa is disable and do not have the password. My user does not have sysadmin privileges and cannot add account with sysadmin privileges.
This statement does not work,
USE YourDBName
GO
sp_changedbowner 'sa'
GO
This is SQLServer 2014,
Check this link https://dba.stackexchange.com/questions/61722/cannot-access-properties-page-of-a-database
Will the detach and attach the database fix this issue.