.../Resources/plugins/LiveTraffic/64/win.xpl : Error Code = 126 : The specified module could not be found.then most likely you're missing this redistributable or it is not up-to-date.
libcurl3for networking, often but not always in by default. This makes
CURL_OPENSSL_4) available. Incompatibilities with
libcurlare the most common source of problems, also see below for some hints.
xdg-utilsneeded for opening web pages (help menu and buttons, download link), Ubuntu has it by default.
libcurl.so.4file and the directory where LT was looking (take it from the error message in
log.txt). In the author's case, the commands looked like this:
sudo ln -s /usr/lib/x86_64-linux-gnu/libcurl.so.4 ~/.steam/ubuntu12_32/steam-runtime/pinned_libs_64/libcurl.so.4