BHE model

hi
I have some question about BHE model

1. Is it possible that the BHE model use in demo version of FEFLOW?
    I know that the demo version is limited a number of mesh (500)

2. I use demo version of FEFLOW and BHE model. but some errors occur (attached image)

3. I want to know how can i use the BHE model.
    I want..someone give sample file  to me ( it is possible...in demo version)

To me it is not clear what the goal of your simulation is. Do you want to
1. simulate a single BHE (FEFLOW only), or
2. simulate a single BHE, applying a temperature differential or power (Plug-in BHELoop), or
3. couple the BHE to a TRNSYS simulation or simulate an entire network of BHE (Plug-in BHEIntegrator)?

Peter