Drupal 7.x

Yesterday I upgraded to drupal 7.59 and after the upgrade my entire custom theme worked except for one section. We have a page inside of our theme that you must select a customer type and then it will serve a form for that specific customer.

I am getting The website encountered an unexpected error. Please try again later. on the /user/login page of my site, but only in the actual login panel of the user/login page - the rest of the page renders just fine.  Contrib modules include:

I have spent a great deal of time researching and I seem to be finding conflicting ideas. I think part of it is a mix of articles talking about drupal 6, 7, and 8. What I am looking for is direction and possibly a simple example. I am going to try and simplify my goal so hopefully some kind soul can help provide a roadmap or small example module.

Simplest Scenario

website is chemungny.arounja.org.
I am a sysadmin, thrown into website support, i barely know drupal/php, so any help would be appreciated.

Website should load a map with markers,  but getting error, not sure what happened or if something was updated by another user.

Notice: Undefined index: Community in include() (line 116 of /home3/ccnyweb/public_html/sites/all/modules/gmap_dynamic/theme/gmap_dynamic.tpl.php).

Just wanted to know, Is there any way to execute custom cron job after delete node?

I did not find any hook from Node API.

Thanks for your help!