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 ('1afa4ec8fef680941d44d44512a7884b', -1, 1714768777, 1714768777, '12dadae6', 16, 0)

Line : 158
File : sessions.php