404 error when trying to save settings

Again, thank you so much for your response. I had to respond here as gmail is giving me the following error when I try to reply to your response earlier:

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

[email protected]
(ultimately generated from [email protected])
host gmail-smtp-in.l.google.com [172.217.75.26]
SMTP error from remote mail server after end of data:
550-5.7.1 [50.28.106.77 19] Gmail has detected that this message is likely
550-5.7.1 suspicious due to the very low reputation of the sending domain. To
550-5.7.1 best protect our users from spam, the message has been blocked. For
550-5.7.1 more information, go to
550 5.7.1 https://support.google.com/mail/answer/188131 5a478bee46e88-3074db32e20si21357088eec.17 – gsmtp

I reinstalled WP7, no change
I deactivated all plug-ins to see if there was an issue with another plug-in, no change
I installed WP Debugging plug-in and no errors popped up

I am at a loss and this is a good plug-in for what the department needs for the State Police Alumni.

Any ideas would be welcome. If you need it, I can even provide you access to the site to see.

Thanks again in advance.
Jim

The page I need help with: [log in to see the link]