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 ('953e5a7e6f37354ab3e652a6617fe54d', -1, 1730312066, 1730312066, '039345a0', 0, 0, 0)

Line : 195
File : sessions.php