You might have accidentally changed the setting that sends messages from Minecraft --> Discord in the config, so make sure that it is set up correctly.
Try to reset the plugins files, there may be an issue with it.
It also looks as if the plugin hasn't been updated in a while, so I would advise that you create a suggestion post asking for the plugin to updated here.
You can connect with 1.15 clients, but any new 1.15 features wont work. Nothing will be corrupted when servers update.
Also, this post belongs in community support, so please post in the correct category next time!
CratesPlus is starting to get a little bit outdated, and so i'd recommend you use Crazy Crates or another alternative.
Additionally, please do not reply to a post over one month old. Topic Locked
Hello! If you notice that a plugin needs updated, please make a post here. However, these plugins dont appear to have been updated by their author in quite some time, most likely being the reason that they aren't updated here.
0 tick farms were patched (fixed, as they were classed as a bug) in a paper spigot build (what Minehut uses), and due to this they wont work.
There is no way to bypass this.