Outdated server error message when the server is in 1.17.40.06

Hello everyone, I am posting this message because when I try to connect to my aternos bedrock server, I doesn't work. I have triple checked and it is on 1.17.40.06 and my Minecraft version is displayed as 1.17.40 .I have tried uninstalling the game, switching the server to an older version and putting it back to 1.17.40.06, but nothing worked. It sill shows "outdated server"

Help me pls

I have checked in the server console and it says 1.17.34, even tho it displays 1.17.40

How do I properly update it ?

Here are some pictures