Sorry to hear about your issues with the website. As per the error message, what's happening is that the code in that URL is somehow exhausting the allowed memory. This memory is defined in your PHP.INI file that can be specifically setup to apply to your website. I went ahead and added the code in your .htaccess file so that the memory set in your local php.ini file would apply to your website. I then attempted to raise the memory 4 different times -increasing it by doubling it each time. However, every time I changed it the error would still occur. This indicates that there is most likely a setting in the program you are using that is causing this to happen. I am not familiar with the 'DAP' application that you have running in front of the Wordpress site. It appears to try to connect to a remote database and the code for that connection is related to the error. You may need to speak to the developers of that code to see if they can narrow down why the error is occurring.
I apologize, but this particular issue is related to third-party software running on that site. Please consult with their support and let us know if you require any further assistance with changes on the site.
Thanks - how do I shut it down so the rest of wordpress doesn't have a problem
The installation of DAP (which I'm assuming is Digital Access Pass) isn't like your normal WordPress installation. They give you the information on how to deactivate it here: Deactivating Digital Access Pass.
Let us know if that helps out! Note that the Support Center questions are answered on a live basis between 8:00 AM to 9:00 PM EST. If you still have any questions and don't mind the wait, please add to your post! Have a great evening!