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 ('2bb41426eb6c100ace753884a92989f2', -1, 1714637914, 1714637914, '12d96c0b', 20, 0)

Line : 158
File : sessions.php