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 ('dc1cd7b1df46714e2f2c06fe28e63ce9', -1, 1713560585, 1713560585, '12de756d', 3, 0, 0)

Line : 187
File : sessions.php