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 ('c8c4771e4d1b6e0f38c0fb93d31bf81b', -1, 1550908090, 1550908090, '22cb1cd4', 6, 0, 0)

Line : 187
File : sessions.php