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 ('421b5ee2436a5ac8f34b8de3f03dd32f', -1, 1714632122, 1714632122, '0390ee14', -4, 0)

Line : 158
File : sessions.php