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, session_admin) VALUES ('66dc24cdb2dba815cd3f8b51da68f75e', -1, 1432376028, 1432376028, '36cd4b3c', 1, 0, 0)

Line : 189
File : sessions.php