Chronis leg surgery

Chronis, is a stray cat that started visiting my house about a year ago. I began feeding him, and about two months ago, he allowed me to pet him for the first time. Unfortunately, on the 13th of this month, he came back injured, with his back right leg hurt. The X-ray showed that the leg is broken and requires surgery. The cost of the operation amounts to €500, a sum that is challenging for me to cover at this time. It would be greatly appreciated if €400 of this amount could be raised through support. Thank you very much!