I have an error code coming up when you go to check out. (Unknown error encountered, please try again).  I checked my error logs and these are some of the errors that were thrown.  I did check to make sure that my check out would accept any shipping and shipping will accept any payment.  Suggestions of where to go to find out what is throwing these codes?

I have 2 sites, my wholesale site is set to show prices after you log in.  That part works amazing! Once you log in and go to a categories and click on a product you are logged out and have to relogin in and the process repeats.  You cannot access the price or the buy function as you cannot remain logged in when going to a product.  What did I miss when setting this up?