Run a check of metadata
This is request to add feature to identify invalid objects like views, procedures etc.
Database objects can be invalid when base table altered/drop
Could be some information_schema query would be helpful

Note that invalid views can be identified with:

select * from information_schema.tables where table_schema not in ('INFORMATION_SCHEMA','performance_schema','mysql','sys') and table_type='VIEW' and table_comment like '%invalid%';