terminate called after throwing an instance of 'std::length_error'
  what():  basic_string::_M_create

Program received signal SIGABRT, Aborted.
0x00007ffff6077d7f in raise () from /usr/lib/libc.so.6
(gdb) where
#0  0x00007ffff6077d7f in raise () from /usr/lib/libc.so.6
#1  0x00007ffff6062672 in abort () from /usr/lib/libc.so.6
#2  0x00007ffff6f5258e in __gnu_cxx::__verbose_terminate_handler () at /build/gcc/src/gcc/libstdc++-v3/libsupc++/vterminate.cc:95
#3  0x00007ffff6f58dfa in __cxxabiv1::__terminate (handler=<optimized out>) at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:47
#4  0x00007ffff6f58e57 in std::terminate () at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:57
#5  0x00007ffff6f590ac in __cxxabiv1::__cxa_throw (obj=<optimized out>, tinfo=0x7ffff704b020 <typeinfo for std::length_error>, dest=0x7ffff6f6eb60 <std::length_error::~length_error()>)
    at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_throw.cc:95
#6  0x00007ffff6f54758 in std::__throw_length_error (__s=__s@entry=0x7ffff7011f69 "basic_string::_M_create") from /usr/lib/libstdc++.so.6
#7  0x00007ffff6ff145b in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_create (this=<optimized out>, __capacity=<optimized out>, __old_capacity=<optimized out>)
    at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/ext/new_allocator.h:99
#8  0x00005555556bc7ee in void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char*>(char*, char*, std::forward_iterator_tag) ()
#9  0x000055555567ad58 in Config::find(nlohmann::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::adl_serializer> const&, std::deque<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) const ()
#10 0x000055555567b164 in Config::find(nlohmann::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::adl_serializer> const&, std::deque<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) const ()
#11 0x000055555567b164 in Config::find(nlohmann::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocat--Type <RET> for more, q to quit, c to continue without paging--
or, nlohmann::adl_serializer> const&, std::deque<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) const ()
#12 0x000055555567d4f9 in Config::get(std::deque<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) const ()
#13 0x000055555567cb87 in Config::getVec3(std::deque<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) const ()
#14 0x000055555571bed2 in Hazard::Hazard() ()
#15 0x000055555566e2a0 in main ()