Rank Condition

Dear All,
In building a monetary business cycle, I adopt the Nason and Cogley (1994) and Scorfheide (2000). To this I added an export sector. Along the FS example in Dynare I develop my *.mod file and the steadystate file.

During the process of estimating/simulating the model no error was indicated but no results was given. The process indicated that Blanchard-Khan condition is met but the rank condition is not verified. I was reliably advised to check the structure of my model, but this has not yielded positive result.

What should I do to get results?

Thank you and God Bless.