The second half of the above statement was meant to help someone else.
My Hosting provider moved me from hsphere to cpanle. THis of course changed my paths, database location, and miscellaneous other stuff.

I followed the steps at https://www.zen-cart.com/tutorials/i...hp?article=100

the portion of it where I upload and run the "Fix_Cache_Key.php" is not working. I uploaded it, but my server will not let it run using CHMOD0644. I get: "Internal Server ErrorThe server encountered an internal error or misconfiguration and was unable to complete your request."

Amusingly my storefront is working, it's the admin section that is not working and giving me the session ID error.