My question involves small claims court in the state of: Indiana

I live in California now, but my parents received an Alias Summons attached to their doorknob with a rubberband at their home in Indiana.

The Summons is for payment on a Credit Card.

I was just wondering what the best way for me to go about this would be.

Do I not have to be served in person? Is it legal to place on parents doorknob?

I plan on paying this off, should I contact the Attorney for Plaintiff directly and try to work out payment with them? Or should I contact the courts in my hometown in Indiana?

Thanks for any help!