Lost small bright green tree frog named Sir Croaks-a-lot near the riverbank in Hattiesburg, Mississippi.

I lost my little green tree frog, named Sir Croaks-a-lot, while I was walking along the riverbank in Hattiesburg yesterday. He may have jumped into the bushes or near the water. He's about the size of a tennis ball and has bright green skin with some darker spots. I’m really worried about him and would love to get him back! If anyone has seen him, please let me know.