Market Press SQL Error

Hello,

I am getting this error when I attempt checkout with MarketPress. I have set up Paypal Express checkout, got the API key. There seems to be a lack of documentation on how to complete the process. Here is the error:

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ” at line 1]

select * from wp_shorturls where postID=

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ” at line 1]

update wp_shorturls set accessed=1307997142 where postID =