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 ('9a51cb10e3e269601c3d2e736e7236de', -1, 1414136486, 1414136486, '36a1c087', -1, 0, 0)

Line : 172
File : sessions.php