Apple TV 4 -Internal API error

I purchased my apple tv 4 last year with Kodi pre loaded. I have over the year slowly learnt more and more about kodi. On Friday my kodi stopped working due to the developer licence which I didn’t know at the time. I am now trying to re-load it. I have the leads etc and I’m using my mac. I have it all ready but when I load it the error ” Internal API error” appears. Like I said before I have no idea what this means but I’m willing to learn. Can I get round it? and it so how ?