No.
That means you didn't put the files from the pack in the right place. as in the mesh number it is trying to load doesn't exist, and therefore is illegal. FPSC will put out a warrant for it's arrest, it will go awol, running down the street in it's pajamas, shooting pedestrians with a colt 45 until eventually a SWAT team guns the rogue mesh down in a park, as it screams obscenities into a megaphone with daffy duck drawn on it.
In breif, if it came with an installer, make sure you specified the correct installation path, if not re-install. if its a zip file, read the instructions very carefully and copy everything to the right place.
Also, check out NickyDudes guide to FPSC.
You have posted on 2 "problems" now, both of which you could have figured out for yourself, with a little research.
In the Words of Sensei Butterfingers:
You are not the first person to seek answers to these questions, and this is not the first time that alot of your respondents have answered them. Be patient, all knowledge can be yours, but you must work for some of it yourself.