Fatal error: Uncaught Error: Call to undefined function register_activation_hook() in D:\www\wordpress - 安裝環境+外掛測試\02.外掛程式\常用外掛\contact-form-cfdb7\contact-form-cfdb-7.php:65 Stack trace: #0 {main} thrown in D:\www\wordpress - 安裝環境+外掛測試\02.外掛程式\常用外掛\contact-form-cfdb7\contact-form-cfdb-7.php on line 65