有料テーマを使ってるのにブログやホームページがダサくなる理由と対策

Fatal error: Uncaught Error: Call to undefined method SWELL_FUNC::get_internal_blog_card() in /home/saitoumasami/saitoumasami.com/public_html/wp-content/plugins/thor-to-swell/lib/shortcodes.php:28 Stack trace: #0 /home/saitoumasami/saitoumasami.com/public_html/wp-includes/shortcodes.php(393): swl_get_blogcard(Array, '', 'sitecard') #1 [internal function]: do_shortcode_tag(Array) #2 /home/saitoumasami/saitoumasami.com/public_html/wp-includes/shortcodes.php(265): preg_replace_callback('/\\[(\\[?)(siteca...', 'do_shortcode_ta...', '\n\xE6\x9C\x89\xE6\x96\x99\xE3\x83\x86\xE3\x83\xBC\xE3\x83...') #3 /home/saitoumasami/saitoumasami.com/public_html/wp-includes/class-wp-hook.php(308): do_shortcode('\n\xE6\x9C\x89\xE6\x96\x99\xE3\x83\x86\xE3\x83\xBC\xE3\x83...') #4 /home/saitoumasami/saitoumasami.com/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters('\n\xE6\x9C\x89\xE6\x96\x99\xE3\x83\x86\xE3\x83\xBC\xE3\x83...', Array) #5 /home/saitoumasami/saitoumasami.com/public_html/wp-includes/post-template.php(255): apply_filte in /home/saitoumasami/saitoumasami.com/public_html/wp-content/plugins/thor-to-swell/lib/shortcodes.php on line 28