phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './illustra_phpbb1/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 ('284423d4942f82d98ca4cbab2639d9c2', -1, 1406769454, 1406769454, '36c5935a', -1, 0, 0)

Line : 187
File : sessions.php