well not really i downloaded skins from the fourms here just changing some weapons and that is it, i really have no idea if the skins are the cause of this its like im handicapped! 
Actually, it may not be the models, but remove them and put the original models back in.
The error is being caused because of 2 things:
- Windows Firewall
- Conflicting Ports (27005)
For the Windows Firewall, you can delete Cry of Fear and Steam from the Exceptions (Start > Control Panel > System Security > Windows Firewall > Allow an app or feature through Windows Firewall > Delete "Cry of Fear" , and "Steam") and make Windows Firewall re-learn those exceptions again. OR you can see if turning off Windows Firewall temporary will work.
For the Conflicting Ports (27005), you will need to add, "+clientport 27025" to your, "Launch Properties" for Steam. (Right Click "Steam" shortcut > Add to the "Target" box.)