Estou com o mesmo problema..Ao instalar o plugin Cart66 apareceu um erro fatal e ao acessar o site aparece a mensagem abaixo:
Warning: include_once(/home/storage/e/de/4b/minapim/public_html/news/wp-content/plugins/./includes/class-cm-log.php) [function.include-once]: failed to open stream: No such file or directory in /home/storage/e/de/4b/minapim/public_html/news/wp-content/plugins/cart66-cloud-members/includes/class-cm-cart66-members.php on line 123
Warning: include_once() [function.include]: Failed opening ‘/home/storage/e/de/4b/minapim/public_html/news/wp-content/plugins/./includes/class-cm-log.php’ for inclusion (include_path=’.:/usr/share/pear’) in /home/storage/e/de/4b/minapim/public_html/news/wp-content/plugins/cart66-cloud-members/includes/class-cm-cart66-members.php on line 123
Fatal error: Class ‘CM_Log’ not found in /home/storage/e/de/4b/minapim/public_html/news/wp-content/plugins/cart66-cloud-members/includes/class-cm-cart66-members.php on line 47