No Addons instaling

I have MXiii 4k Box, for about a year with Android 4.4.0 and Kodi 15? loaded with rubbish. Anyway, I downloaded Kodi Jarvis 16, Used Fresh Start App and cleared everything. I’m not able to update android 4.4.0 never gonna happen, so I believe. Have I screwed up, as now when trying to unzip addons it is saying path not found. It is connected to WIFI.
Do I need to go back to my previous Kodi install before Jarvis? if so how? or do I need to switch something on?

thanks