Is it possible to re-activate spack-stack-1.5.1 on Derecho?

I know it’s a challenging request. The background is that I’ve been running a JEDI package for more than one years that was compiled with spack-stack-1.5.1, however one of the modules (specifically ioda-converter) I need doesn’t exist in the latest package repo anymore, so I probably can’t simply recompile the package to make it work. Now since it’s been updated to spack-stack-1.7.0, I can’t use that ioda-converter module anymore, with an error
ImportError: libatlas_f.so.0.35: cannot open shared object file: No such file or directory
On March 4th, it was still working. So I suppose you removed spack-stack-1.5.1 after that.

Thanks for your consideration. Meanwhile I’ll seek other options.