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 ('69af0977a81258b2aa3438d5a475a038', -1, 1714024247, 1714024247, '039066ef', -1, 0, 0)

Line : 187
File : sessions.php