Automated Jobs > Generate Sitemap Not working

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I am running 5.6.3.4

I received a bunch of 404 errors form a site monitoring program. I went to look at my sitemap.xml and I get this error:

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This page contains the following errors:

error on line 8 at column 7: Extra content at the end of the document
Below is a rendering of the page up to the first error.

http://www.multisorb.com 2015-01-21 weekly 1.0
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So then I went in "system and settings/automated jobs/Generate sitemap file" and it said that it was still generating from 3 months ago. I've never experienced this as the typically are generated right away. I reset the job and tried again. Still was not functioning as expected. As a trouble shooting step. I tried deleting the job and re-installing it. When I attempt to re-install the file in the "automated jobs" window, I am redirected to a white screen hence unable to re-install.

I suspect I am having trouble connecting to the community in some way. It say's my site is connected. I disconnected and reconnected and that has not resolved the problem. While I am said to be connected, if I hover over dashboard and click on the "Add-ons" link the "brows add-ons" window appears on my site, but the add-ons don't populate. It's seems as if my site is not fully connected to the market place.

Any suggestions?

Thanks,
Jim