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 ('9077c7c5d20e54195bc38bb3bf2c8405', -1, 1519367687, 1519367687, '36a74b1c', 7, 0, 0)

Line : 187
File : sessions.php