Can someone help me understand this?

How did I lose this hand if the guy had nothing?

short deck GG

https://preview.redd.it/e9c381olrbge1.png?width=895&format=png&auto=webp&s=ef425411f1f788f25a5a026504c27c0099290a93

https://preview.redd.it/53qng2olrbge1.png?width=895&format=png&auto=webp&s=d96d4ef3a9f419406a9c73ecdcfcaf6bd6031ba5