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 ('ff8756fabd8f6243d7f09a3f2930cc00', -1, 1714374002, 1714374002, '12bc6c36', -1, 0)

Line : 158
File : sessions.php