10000 PEPU unexpectedly recieved

Hi!

Just for a fun I've obtained PEPU for $50 on https://pepeunchained.com/en/dashboard which resulted in 2990 PEPU. I can see it on the website and they are stacked.

But today I've recieved 10000 PEPU on my wallet. Here is the token: https://etherscan.io/token/0xad162d5523cde449d91e3be69ca38bc157b18e53. I've recieved it from "pepu deployer" wallet.

I did not understand what is it? Airdrop? Stake reward?

I've tried to sell it on Uniswap, but the transaction was frozen on the last "approving" stage. What is it? Is it real PEPU tokens? Is it possible to sell them?