I wanted to reconcile but eventually I just let her be angry.
Is this your girlfriend that we're talking about? Why do you think she's continuing to be angry at you?
I'm just afraid that I would do something wrong and she will get more angry
I can understand how you wouldn't want to make her more angry. It's okay to not want to put up with other people's moods. You should probably sit and talk with her so she doesn't keep doing it in the future.
I just don't want to talk to her right now. What's one day of silence to fix this?
You and your girlfriend alone can fix the issue that you're having, and if you do not talk with her, I feel like she may get the wrong idea and make your relationship worse. If you still care about her, sincerely and calmly talking about your issues is still the best way to resolve any problems.