The SELECT permission was denied - View querying data from a different database
To maintain an unbroken ownership chain among databases with views, the databases must be owned by the same login in the case of dbo-owned objects. Also, the DB_CHAINING option needs to be enabled for the databases involved. The user needs connect permissions to all databases accessed by the view but only permissions on the view need to be granted.

Be aware that of the security implications with DB_CHAINING. Only enable the option when you fully trust users who can create objects in databases with chaining enabled. This is less of a concern when only sysadmin role members can create objects and review scripts before deployment.