Solved Register Command Help

Hello!

I have coded a trails plugin, and I got it all done and coded, but when I go to register the command in the 'Main' class it says the code is incorrect.

Coding Classes Here:

Main
https://pastebin.com/Q6Y9dUN6

Particles:
https://pastebin.com/a9W1Ckz7

InvEvents:
https://pastebin.com/m9HZnsCx

MoveEvents:
https://pastebin.com/0k6xYWAf

 

Idk what a stack trace is ;-; but it says this line is wrong

Code (Text):

getServer().getPluginCommand("trails").setExecutor(new CommandTrails());

 

No. I changed the Particles class to CommandTrails.

 

The problem is fixed! Thank you everyone who helped!