Hubic on line storage - files download problems

Good evening. I have been a hub user for more than 4 years. I'm facing problems when I try to download my back ups to a new pc. Not all files are being downloaded for every back up file. The same problem appears in synchronizing my files. Not all files are synchronizing per folder. Many files are unable to download to my new pc. The total size of my files (backup & sync files) is reaching the 130Gb. It is very important to have all my files downloaded. Waiting for your response. My hubic account is mmavrreg@gmail.com.
Probably this is not the correct forum but please guide me to post my ticket to the correct help desk.
Thank you
Michael Mavroudis