download fallito: -5

[DavidParkin]

download fallito: -5

[tomakkermans]

Similar error here, with this terminal output:
(.....)
topen riuscito
download fallito: -20
/usr/include/c++/7/debug/safe_iterator.h:283:
Error: attempt to dereference a past-the-end iterator.

Objects involved in the operation:
iterator "this" @ 0x0x7fe9150248b0 {
type = __gnu_debug::_Safe_iterator<std::__detail::_Node_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits, std::allocator > const, file_cache_row>, false, true>, std::__debug::unordered_map<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, file_cache_row, std::hash<std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits, std::allocator > const, file_cache_row> > > > (mutable iterator);
state = past-the-end;
references sequence with type 'std::__debug::unordered_map<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, file_cache_row, std::hash<std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits, std::allocator > const, file_cache_row> > >' @ 0x0x55974e994fd0
}
Aborted (core dumped)