I work for a C corp in MA and own another LLC in MA, most staff for llc is overseas and gets 1042S. I moved to CA mid year, where should I file? can i use full service?

Last year, I tried it but the expert told me a few weeks later, she couldnt help me further and I have to use the self-filing system. Do I have to pay taxes in both states? Am I a resident of both states? Thanks for the help.