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 ('70efec6c61391f7fd5b9ff0fcb765f08', -1, 1714562989, 1714562989, '038ec681', 9, 0)

Line : 158
File : sessions.php