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 ('bbdf763ec018b236ce5c6f12ce6eb893', -1, 1430911687, 1430911687, '3693fa21', 4, 0, 0)

Line : 187
File : sessions.php