http://theyoshxgvcjm4s2xdt6zcjym4kgskibrlos6fai26yes4bhpia5z7qd.onion/fix-my-dreambox-ziggo-channel-list
It turns out, that Ziggo was doing only 64-QAM, so my list was always working. Now the Dreambox Ziggo Channel list software is looking at the modulation and take that in account with the frequency information. So download the new channel lists and enjoy all the new updates to 256-QAM modulation.