Havoc56445

I have tried making a string duplicator for a couple hours and cant seem to make it work, I don't know whether its a problem with the server in general or if there is a setting i need to enable but i cant seem to make a string duper work. i know its a problem with mine hut as I've done it in a solo world with no issues. any suggestions would be helpful.

I downloaded the morph mod on my server but for some reason on every server i do this plugin iit doesnt say have it installed when i do /plugins it juust says viaversion, does anyone have any ideas i can try