Rollback to an old version

Hi everyone,

firstly, please excuse my poor english, I'm french.
My problem :
I've got a PMS 1.3.4.3285 runing on a windows computer. When I access to it via DLNA, files are sort in this order, which is the correct one:

I migrated all my files on a DS416Play runing PMS 1.7.5.4035, and when I access it via DLNA, the absence of zero make files sort in the wrong order:

Maybe I did something wrong in configuration, I don't know.

In fact, I would like to rollback to 1.3.4 or older on NAS (which is 1.7.5), to keep the correct file sorting. But I can't find any old SPK anywhere.
Any chance for someone have got a 1.3.4 or older SPK ?

Thanks a lot for reading.