OK, so the keyword is “the”. Using a Vigenere decoder, I get the following plaintext:

PLEASE HELP ME SOLVE THIS PUZZLE ITS FOR A SCHOOL PROJECT AND I NEED TO FIND THE HIDDEN MESSAGE IN THIS TEXT GOOD LUCK AND HAVE FUN

Is that what you were looking for?
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence