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 ('b2259c827b0de8b6a9d6649f6c9f60f3', -1, 1713416169, 1713416169, '038e24b7', -4, 0, 0)

Line : 187
File : sessions.php