PMDG-GoFlight MCP Pro Interface problem

Hello everybodyI Have a big problem.I have just bought the PMDG-GoFlight MCP Pro Interface. I would like to operate it on the PMDG 737 and 747-400 + 747-400F.I bought the license therefore, downloaded the program and I installed everything. Then, I followed the procedure of installation. I changed the configuration in GF config to place it in "compatible add on." With the PMDG 737 -600/700/800/900 it functions marvellously.When me chosen 747 (passenger or cargo plane), FS 9 crash and return to the desktop. For info, my fsuipc is registredI have FS 9.1 and I possess the last updates of 747-400 & 747-400F.Does someone can him to help me? Thank youAndre