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 ('744a8d3c3ed63c3f6151cb692ee5a702', -1, 1462355040, 1462355040, '369f1fe6', -1, 0, 0)

Line : 172
File : sessions.php