Mysql cant start / connect because .\ojs\notification_settings.ibd

i backup and delete notification_settings.ibd, and mysql still cant start…

2017-02-06 13:55:31 8636 [ERROR] InnoDB: Attempted to open a previously opened tablespace. Previous tablespace coba/dosen uses space ID: 41 at filepath: .\coba\dosen.ibd. Cannot open tablespace ojs/notification_settings which uses space ID: 41 at filepath: .\ojs\notification_settings.ibd
InnoDB: Error: could not open single-table tablespace file .\ojs\notification_settings.ibd
InnoDB: We do not continue the crash recovery, because the table may become
InnoDB: corrupt if we cannot apply the log records in the InnoDB log to it.
InnoDB: To fix the problem and start mysqld:
InnoDB: 1) If there is a permission problem in the file and mysqld cannot
InnoDB: open the file, you should modify the permissions.
InnoDB: 2) If the table is not needed, or you can restore it from a backup,
InnoDB: then you can remove the .ibd file, and InnoDB will do a normal
InnoDB: crash recovery and ignore that table.
InnoDB: 3) If the file system or the disk is broken, and you cannot remove
InnoDB: the .ibd file, you can set innodb_force_recovery > 0 in my.cnf
InnoDB: and force InnoDB to continue crash recovery here.

This question is about InnoDB crash recovery, rather than about OJS. You will want to post to a forum such as Stack Exchange where folks with expertise in recovering from a mysql fault can help.