I wrote 'whilst' instead of 'while'. In English this is the same thing, but it was still received as incorrect.
please report this next time, and any other similar errors with additional sentences(:
You're absolutely right, though to be fair "whilst" is a more archaic form of the word. They have to manually put in all the accepted responses to fair enough that they couldn't cover all synonyms. Good call mentioning it though
It's not grammaticly incorrect, but the sentence in English is a little weird. "The cat stands when the dogs stand". It's like a general but wrong fact. You can try to report it though :)