There is no way for anyone to be able troubleshoot this except yourself. You haven't provided any usable information at all.
But, there is a hint in the Exception message:
Exception information: Exception type: HibernateException Exception message: Creating a proxy instance failed
According to the Java documentation, a HibernateException is the parent class for a ton of SQL related exceptions.
It would appear that you're doing something properly related to any SQL database work, possibly not properly closing a dataset somewhere, a connection object, a reader, ... anything.
With the information you provided, that's the best answer you're going to get.