phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table 'forum_sessions' is marked as crashed and should be repaired

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('5ff7e5f9ac120c65f999d7b83e1f0b6f', -1, 1417250013, 1417250013, '36a67a56', 4, 0, 0)

Line : 187
File : sessions.php