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 ('3ea3fea301eff2a51deadd51fdc8de09', -1, 1503148309, 1503148309, '369c4cf0', 6, 0, 0)

Line : 189
File : sessions.php