a series of problems

[midge217]

Ok so firstly I get this game as a christmas present and up until today it has been working fine, however when I logged off my Norton 360 antivirus automatically removed the pandoraserver.exe file so I then uninstalled the game and reinstalled it and now when I try to launch the game I get a pop up message which says:

Standard exception thrown:
ArmorType.cpp:103: virtual void pandora::world::ArmorType::load():
Error: TieredEntity::load(const
std::pair<std::basic_string<char>,
boost::property_tree::basic_ptree<std::basic_string<char>,
std::basic_string<char> > >&): Error: TieredEntity.cpp:242:void pandora::world::TieredEntity::load(const
std::pair<std::basic_string<char>,
boost::property_tree::basic_ptree<std::basic_string<char>,
std::basic_string<char> > >&): Error: Invalid tag: "playerConditions".

HELP ME I just use a computer for gaming and stuff but I don't have a clue what to do so if someone could tell me how to fix this without going above an extremely basic level of knowledge that would be amazing