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 ('0d0c5a4c6a6ef405e06288b0571020e9', -1, 1730421297, 1730421297, '12bcca9b', 33, 0, 0)

Line : 195
File : sessions.php