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, session_admin) VALUES ('e97a9df27b4b292f5e2c3e398da060cf', -1, 1730421551, 1730421551, '12d92581', 42, 0, 0)

Line : 195
File : sessions.php