Stuck in 'make'

[NisTa24]

Please help me out. I could successfully run the hack but after one month it stopped working. It shows error when I make before running it like sudo ./csgo_external. Please help the error looks like this,

CMakeFiles/csgo_external.dir/main.cpp.o: In function getConfigValue(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)': main.cpp:(.text+0x50): undefined reference to libconfig::Setting::operator std::__cxx11::basic_string<char, std::char_traits, std::allocator >() const' collect2: error: ld returned 1 exit status CMakeFiles/csgo_external.dir/build.make:172: recipe for target 'build/csgo_external' failed make[2]: *** [build/csgo_external] Error 1 CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/csgo_external.dir/all' failed make[1]: *** [CMakeFiles/csgo_external.dir/all] Error 2 Makefile:83: recipe for target 'all' failed make: *** [all] Error 2