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 ('8bcc1c5fa4f26027bdd2084e43cbee42', -1, 1714682931, 1714682931, '340f3f91', 7, 0)

Line : 158
File : sessions.php