Animate Compiler Errors

Hi All

I have replaced the main audio in an old file, and have had to change to Action Script 3.  The user can click on a button to play, stop or replay an additional piece of audio.  When exporting as a movie file I am getting these errors.   I am new to Animate and have no idea what I should be changing it to.   Help 🙂

Detail on the errors is as follows

What do I need to do to get this working again, please?

With many thanks Fran