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 ('54e6a4e59c5d9418c627d4b634cd458e', -1, 1714713871, 1714713871, '12e0d6d7', -9, 0)

Line : 158
File : sessions.php