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 ('20b7e1f4f6f63ce6d0de883c38471aef', -1, 1714746892, 1714746892, '038eae37', -4, 0)

Line : 158
File : sessions.php