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 ('39bd7bf57f7f30e67ff99b3b564e03e8', -1, 1550653405, 1550653405, '36aded98', -4, 0, 0)

Line : 187
File : sessions.php