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 ('647e306df04a73e6dd9a360b216a6da6', -1, 1713495048, 1713495048, '0391b789', -1, 0, 0)

Line : 187
File : sessions.php