Technischer Support

I installed Ryzom. But game does not start. Not even the screen, where we need to login to start the game.

Following were two instances of warning while downloading necessary data
1)
WRN 9b52b7c0 downloader.cpp 388 onDownloadFinished ryzom_installer : Download finished with HTTP status code 206 when downloading https://excellmedia.dl.sourceforge.net/project/ryzom/installer/ry zom_live_data.7z
QDir::exists: Empty or null file name
2)
WRN 9b52b7c0 downloader.cpp 388 onDownloadFinished ryzom_installer : Download finished with HTTP status code 206 when downloading https://excellmedia.dl.sourceforge.net/project/ryzom/installer/ry zom_live_client_linux64.7z
QDir::exists: Empty or null file name



Following two messages were displayed 5 times while installing was in progress
.../.local/share/Ryzom/ryzom_live/ryzom_configuration_qt: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.21' not found ...

.../.local/share/Ryzom/ryzom_live/ryzom_configuration_qt: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `CXXABI_1.3.9' not found...

After them, following two messages was displayed 10 times while installing was in progress

.../.local/share/Ryzom/ryzom_live/ryzom_client: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.21' not found ...


How do I correct the problem?