I am new on this forum and please do excuse me about my bad English. I invest recently in a Witbox 2 Rerap from Spanish company Bq and I am on Macs and Mac Book air. So I download severals softwares. I found interesting things to do with Sweet Home 3 d but 50 percent of the exported files are recognized by Slic3r otherwise it badly bugs or collapse and i have the following message (please see attached file). I do not understand. Please Help me.