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 ('f729b6a2d5719551b5e827b0ae4e6c56', -1, 1716074747, 1716074747, '0387d1b8', 10, 0)

Line : 158
File : sessions.php