Thanks for your answer. I had a stable version of the platform that was installed in November 2017 where I could use the native cell types that I mentioned before. I recently updated the NRP and that is when I started experiencing problems.
For example, the nest-simulator/SpikingCerebellum module that was supposed to be manually compiled following the instructions from UGR is now available automatically. That module allows you to use native cell types like "iaf_cond_exp_cs" but if you cannot do sim.native_cell_type('iaf_cond_exp_cs') (where sim is from hbp_nrp_cle.brainsim import simulator as sim) I do not know any other way to use the SpikingCerebellum in case I needed it.
However, before the update I was able to do so.
Maybe I am doing something wrong that is why any comment or help would be really appreciated.