CMP (as noted in the residue definition) is cytosine monophosphate. It is not the same as cAMP (cyclic adenosine monophosphate), which is not in the force field by default.
Your original .mol2 file has an incorrect protonation state. The phosphate group should be deprotonated and carrying a -1 charge.
When there are no additional parameters defined in a stream file, it means all the necessary parameters already exist in the force field. This is not diagnostic of anything, really.