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 ('31331ef863f3a80746c3769e5055877f', -1, 1714404230, 1714404230, '12de25a9', -4, 0)

Line : 158
File : sessions.php