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 ('07c8193d98843c1bf496aa9d460d27d5', -1, 1749866081, 1749866081, 'd849d8fd', 42, 0, 0)

Line : 190
File : sessions.php