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, session_admin) VALUES ('c39938aee9842c675d839394c5c0f347', -1, 1713514996, 1713514996, '03812737', -11, 0, 0)

Line : 187
File : sessions.php