Confused

So my 3 year old has been potty trained since before she turned 3 (June 2019)but this week we’ve been at it with parties, Christmas , family gatherings so we haven’t been home much just to shower and sleep but she’s been having accidents lately pee and poop. It’s tiring cleaning up her accidents and then peoples comments 🙄 could it be since we’re not in our regular routine that’s she’s messed up kinda lol I feel like she should have this down already like she shouldn’t be confused.. or what could anyone help?