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 ('4608f8b3651a9ad4434c588f8437fd27', -1, 1414738062, 1414738062, '36a1d6dd', -4, 0, 0)

Line : 187
File : sessions.php