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 ('b428f96b48c66ecc7b07e0f8ead7a6af', -1, 1713412272, 1713412272, '12779f96', -1, 0, 0)

Line : 187
File : sessions.php