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 ('b7ab30b537c5af94d260a417a1e3c897', -1, 1713415012, 1713415012, '038accd0', -10, 0, 0)

Line : 187
File : sessions.php