9.0 Workflow - The type initializer for 'B1.Data.DIMetaDAtaProvider' threw an exception

Hi Everyone,

I am trying to create a new Workflow Process in the SAP Business One Studio, but when clicking on a User Task -> and in the Properties area -> I try to click on the drop down box for Business Object but get the error:

'The type initializer for 'B1.Data.DIMetaDAtaProvider' threw an exception'

The Workflow Service is started.

Does anyone know how to solve this one please?

Thank you very much.

Caroline