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) VALUES ('d5e6f21763ba6d9e8f4350839dd8db0c', -1, 1714339513, 1714339513, '12bca81c', -10, 0)

Line : 158
File : sessions.php