The dropdown menus on the pet pages appear to be broken - I can't edit any of my pet's descriptions or get into their treasures.
They seem to be working fine for me. What browser are you using? And do you have any adblockers or virus protection that may be preventing these from working? You may want to clear cache and restart your browser.
If this doesn't work you may want to go through Personal >> Pets >> Pet (whichever you want) and then that should take you to the old fashioned menu where you can at least edit the description and treasure chest.
Dexter by ❤