I am currently using the Tebex Webstore under this address: http://craftingforchrist.tebex.io/
I am having current issues on my Tebex store that I cannot use the luckperms plugin using "lp user parent add" command in my package.
When I get a free dummy package configured with this command applied, it won't apply and I can't see why it wouldn't be working.

I emailed tebex and got the following response.
"Hey there.A s far as I know, this is just a limitation of luckperms, and is not something that we can control, as it is a compatibility issue. Sorry about that."