Database Owner Is Invalid
The owner of the database no longer exists, which can cause issues; especially with SSMS.
💡 Select 'Suggested Script' for an automatically generated script.
Set the database owner to the system administrator.
How to Changes the Database Owner to sa
ALTER AUTHORIZATION ON DATABASE::[WhippetWorks] TO [sa] GO
How to Find the Name of the Default System Administrator (sa)
SELECT SUSER_SNAME(0x01); GO
ALTER AUTHORIZATION (Transact-SQL) | Microsoft Docs