There's a related question here: Is it really necessary take one entire week to rest from running? but it seems like that person was already a seasoned runner.
I'm going from almost zero physical exertion for the past 4-5 years and I'm in week 4 of the c25k app. There's some stuff I have to deal with this week and I'd like to take a week off to focus on it before getting back to running. I don't want to lose the progress I've made over the past 3 weeks so is it okay to take a break? I'm relatively fit so I don't have any health issues or anything and I'm doing it purely as a hobby type thing.