Looks like it's not supported for 1.21, but works as intended otherwise and would recommend purchasing if you are using a 1.20 or below server.,

Interesting plugin. Can definitely find a use for it. It also has further potential for development, it would be worth adding a command to add events in the game or via the console to be able to automate certain events related to other plugins, such as MythicMobs or Betonquest. Or maybe even some form of hack/integration could be done in the future?

Another interesting proposal is to add the ability to enable and disable the action-bar function in the game with the player/console command, so that the player or another plugin can show or hide the action-bar for the player. Plus, possibly, the option to use the bossbar for a similar purpose.

Great plugin to inform players about future events.
A great adaptation of the past TheTime and works perfectly in minecraft 1.19.2
It is already installed in Mundo L0c0 and translated into my language.
We will keep an eye out for future updates.
Very good communication with the creator.
Super recommended.