As is noted on the linux download page, you need GLIBC 2.18 or higher
and libstdc++.so.6.0.21 (from gcc 5.4.0) or higher to run calibre. This
is approximately three year old software. If your distro does not
provide it, then you should stick with calibre 3.48 until it does.
Instructions on how to downgrade calibre are on the Linux download page
https://calibre-ebook.com/download_linux