Check the permissions on the objects with DENY

select p.name, p.type_desc,OBJECT_NAME(dp.major_id),OBJECT_SCHEMA_NAME(dp.major_id), dp.permission_name, dp.state_desc

from sys.database_permissions dp

inner join sys.database_principals p on dp.grantee_principal_id = p.principal_id

where dp.state <> 'G'

Edit, actually it'll be the DENY at the database level for principal_id = 54

So check who that is - if it's S\I then fix the permissions by using a REVOKE

select p.name, p.type_desc

from sys.database_principals p

where p.principal_id = 54