Fixed crash when reloading entries

src/main/java/modtweaker/mods/botania/lexicon/AddEntry.java

@@ -36,6 +36,7 @@ public class AddEntry implements IUndoableAction {
 	@Override
 	public void undo() {
 		Entry.category.entries.remove(Entry);
+		BotaniaAPI.getAllEntries().remove(Entry);
 	}
 	
 	@Override

src/main/java/modtweaker/mods/botania/lexicon/RemoveEntry.java

@@ -16,6 +16,7 @@ public class RemoveEntry implements IUndoableAction {
     @Override
 	public void apply() {
 		Entry.category.entries.remove(Entry);
+		BotaniaAPI.getAllEntries().remove(Entry);
 	}
 
 	@Override