phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './forumcr/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 ('55a9b7ea6364938be30e5a3e8e4f6f2e', -1, 1427756406, 1427756406, '3659766c', 30, 0, 0)

Line : 187
File : sessions.php