Apple Watch charger is not working, is it covered by warranty?

Hi, I got my Apple Watch in December 2021 and I haven’t had any problems until now. I put my watch on charge last night & it didn’t charge at all.

i borrowed my sisters charger to check if it was the watch or the charger & hers worked.

is there warranty on the chargers and can I get another one please as I’ve only had this for 5 months and there’s nothing I’ve done physically to break it. I’ve attached a photo to show you.

please get back to me as I don’t have a spare to use. Thanks

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