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 ('fc4e6ac3d7cc2fadf3f2ec7762222116', -1, 1714662943, 1714662943, '038a71bc', -8, 0)

Line : 158
File : sessions.php