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 ('80e7f6d0d967e7dfc8d2d4d85aeafb82', -1, 1730417588, 1730417588, '12da0bd3', 3, 0, 0)

Line : 195
File : sessions.php