From the information provided, it seems that there might be some deployment issues.
I would like to point you to this blog post
that contain a few general recommendations on deploying application that consume Telerik Data Access
I think that the first step to resolving this issue is to make sure that recommendations are followed. Please let us know if this indeed solves the issue.
I am looking forward to hearing from you.
OpenAccess ORM is now Telerik Data Access
. For more information on the new names, please, check out the Telerik Product Map