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 ('9eadeeca6f7c5fe8e85ef996da0faaa3', -1, 1714718062, 1714718062, '12e12351', 19, 0)

Line : 158
File : sessions.php