Please do not report cases of (archaic) British English like instal and biassed; we recommend checking a British English dictionary before you open an issue:

• https://dictionary.cambridge.org/dictionary/essential-british-english/
• https://www.merriam-webster.com/
• https://www.collinsdictionary.com/dictionary/english
• https://www.oxfordlearnersdictionaries.com/definition/english/english-uk

You should also check the issue search for already reported mistakes. If you can, please attach a screenshot of the problem. Luma3DS supports making screenhots from the Rosalina Menu.