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 ('c78d1297c92f12ddf91817ee33be38e9', -1, 1714218090, 1714218090, '12bc6c36', 5, 0)

Line : 158
File : sessions.php