Reposting the same answer from the duplicate post (Thin edge - Installation - #2 by Reuben_Miller2).
Whilst your CPU architecture (x86_64) is supported by thin-edge.io, it looks like the OS version that you are using does not. In essence you’ve used the 32 bit variant of Debian bullesys which means that all of the applications are running 32 bit versions rather than the 64 bit version.
The Debian architecture can be viewed by running the following command:
dpkg --print-architecture
The only way to fix this is to use the 64 bit version of the selected operating system, however this will mean redownloading the image, and reinstalling the whole Operating System.