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 ('f15cabf4f44b36f46f4d2458a885b4a3', -1, 1713955159, 1713955159, '12de4598', 7, 0)

Line : 158
File : sessions.php