[ERROR] InnoDB: Attempted to open a previously opened tablespace
2017-08-18 20:07:04 140736493900736 [ERROR] InnoDB: Attempted to open a previously opened tablespace. Previous tablespace blockvotes/vote uses space ID: 7 at filepath: ./blockvotes/vote.ibd. Cannot open tablespace phpmyadmin/pma__pdf_pages which uses space ID: 7 at filepath: ./phpmyadmin/pma__pdf_pages.ibd
2017-08-18 20:07:04 7fffc4b9d3c0 InnoDB: Operating system error number 2 in a file operation.
InnoDB: The error means the system cannot find the path specified.
InnoDB: If you are installing InnoDB, remember that you must create
InnoDB: directories yourself, InnoDB does not create them.
InnoDB: Error: could not open single-table tablespace file ./phpmyadmin/pma__pdf_pages.ibd