DUNEURO error libdl.so.2

It seems that we did some improvements, but now I have another error

/home/duma/.brainstorm/bst_duneuro/bin/bst_duneuro_meeg_linux64: error while loading shared libraries: libspqr.so.2: cannot open shared object file: No such file or directory

I check on internet and this is a library to handle with sparse matrices, but I'm having some troubles in downloading it and install it correctly.

Do you have suggestions?
Thanks