Why did the official dream box genuine checker or whatever where I typed in the code multiple times and it verified as genuine??

Ok, could you recommend anything for the error?
Except throwing it out.

How do you know it's a clone?

How can I fix the 'CA NOT FOUND' error ?

Thanks for the reply.

DM was working fine for a while and then it just stopped working, also it showed some errors before but I can't remember what were they. It might have stopped working because I wanted to clean it inside because I bought it used, I cleaned it and wanted to have a look at the sim card so I removed it and put it back in normally and from what I understood it stopped working after that.
I tried using the option in the official dreambox website where you can type your dreambox code in and it shows if it's genuine or fake and it said that it is genuine.
Also I've tried using optiflasher, dreamup and they did not help at all.
Mini-FlashUp VER: 88 (2014-02-20)
Os: New enigma2
Thanks.