DTM's Toolkit elements don't compile properly in MCreator 2021.3

So, I've just updated to MCreator 2021.3, and when I opened my mod's workspace I was met with an error stating that one of my procedures contains elements that didn't compile properly. I've tested every element in the procedure and it turns out that the elements from DTM's Toolkit plugin don't compile in this new version, even though I think it should be compatible. Is there any way to fix this? Or do I have to wait until the plugin gets updated?