Hi and welcome to the forum:
Sorry to learn that an old friend is not working any more. If you have inserted a charged battery in it and it shows no signs of life at all, the likelihood is that it has succumbed to time and failed. There is essentially nothing that a user can do in that situation and this model came out about 17 years ago and is long, long past any service availability for it.
It may be time to consider looking for a replacement, but the good news is that the technology has come a long, long way since then. Currently there are a couple of Canon cameras with that general size and boasting better resolution, image stabilization, faster processors and a host of other features.
You can browse Canon's website and look under Point and Shoot cameras, but this is about the cheapest model available. Similar in size but with a bigger sensor and a focal range of 25-300mm see:
PowerShot ELPH 360 HS Silver (canon.com)
Right now they are out of stock at Canon, but other outlets may have inventory.
cheers, TREVOR
The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris
