impossible to change the channel since I changed my favorites.

hello, since I changed my favorite solo vuplus (blackhole 2.0.5, cccam 2.3) with dreambox edit, I do not know to use my demo.
In fact, when I turn on my demo, the channel that is currently running, but when I try to change channels, the picture freezes and nothing works.
I check the file cccam.cfg file cccam.prio but despite that nothing works.
I do not know what to do at all