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 ('b75806470b54cb06c3b7364cc0fb6f07', -1, 1714634041, 1714634041, '030e8e73', 6, 0)

Line : 158
File : sessions.php