phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table '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) VALUES ('39f8d44b5f72e76c93160782bce5bd0a', -1, 1435682571, 1435682571, '36e0395f', -1, 0)

Line : 158
File : sessions.php