あらま。俺環なのか

エラーはこんな感じ
WARNING: [pool www] child 21 said into stderr: "NOTICE: PHP message:
PHP Fatal error: Uncaught Error: Using $this when not in object context in /var/www/html/p2-php/vendor/2ch774/quickform/lib/HTML/QuickForm.php:472"
WARNING: [pool www] child 21 said into stderr: "Stack trace:"
WARNING: [pool www] child 21 said into stderr: "#0 /var/www/html/p2-php/rep2/ic2_getter.php(126): HTML_QuickForm::createElement('radio', NULL, NULL, '128×128', 1)"
WARNING: [pool www] child 21 said into stderr: "#1 {main}"
WARNING: [pool www] child 21 said into stderr: " thrown in /var/www/html/p2-php/vendor/2ch774/quickform/lib/HTML/QuickForm.php on line 472"