phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('18df9eb70609daf0e51e7e256d9bf955', -1, 1714697278, 1714697278, '03865a2c', 20, 0)

Line : 158
File : sessions.php