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 ('7c6a2888f53f92fa8d31e92ca0127980', -1, 1714646797, 1714646797, '030c6cec', 20, 0)

Line : 158
File : sessions.php