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 ('835a3a4d4e76faab188b6d50cd6eef78', -1, 1555621091, 1555621091, '12d79f9c', 5, 0, 0)

Line : 187
File : sessions.php