Should I contact my girlfriend again?

We have been dating for like 7 months now. We are both Young and live with our parents. We used to have some problems but we always find solutions but I fear this time not. The last time we texted or talked was last week Monday after that she didn’t contact me so on this past Friday I called her but she didn’t answer, I called again twice on Saturday but no answer but she was online on WhatsApp and Instagram. I’m wondering if I should text her for last time and ask her why she didn’t answer my calls or call me back. If she wants to break up at least she should say it not just Ignore me. What do you guys think I should do?