Activate Vibe Shortcodes = Server Error 500

Hello, Every time I activate the Vibe Shortcodes plugin, I receive a Server Error 500. I followed your recommendations of increasing the memory limit in the wp-config.php and htaccess files. I also contacted my host and they assured me that it has been increased to 512MB in the wp-config file and that the php.ini file does not matter. I also see another posting here from someone with a Server Error 500 issues and you kept referring him to his hosting company. Again, I brought up the issue with my hosting company and all they could do for this is increase my memory like your documentation instructs me to do. I do not see the private setting on this post, so please let me know how to get my credentials to you.