Open casting calls, please help?

So I'm 12 y/o and I do have a modeling/acting agency. But they don't give me any auditions. So does anyone know about open casting calls for maybe Disney or Nickelodeon?? I have acting experience and I'm doing another drama camp in a couple of weeks. So ya is there a website with open auditons? An I don't want to do anything with AFTRA contracts because those are not what I'm looking fir.. Thanks![: