phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './cpdb/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ca848f6d1f2ed0b3ed3e9da5d611ae2f', -1, 1455398167, 1455398167, '36906802', -861, 0, 0)

Line : 189
File : sessions.php