We make careless errors and bad decisions that lead us into embarrassing situations.

我们会不小心犯错，做出错误的决定，导致自己陷入尴尬的境地。

But, there’s also the possibility that she knows it, but made a careless error or other slip-up.

但是，也有可能她知道，但犯了一个粗心的错误或其他失误。