Ping Wheel mod doesn't work in 1.21.7 and doesn't allow the game to start up so, please update the mod to 1.21.7

I appreciate the interest in the project, but please do not open issues about updating to the latest version.

There will always be a reason for a mod to not be up2date right away (including time constraints), therefore I wanna cite the fabric blog:

A new version of Minecraft is coming soon with some changes that affect most mod makers. As always, we ask all players to be patient, and give mod developers time to update to this new version. We kindly ask everyone not to pester them.