Enabling/Disabling Mods in modpacks

Hello there! I have been using your services to host a server in which i play with my friends and so far we are having a great time. Specifically we are playing in a ftb server with FTB Unleashed installed. But now we have experienced a problem when we wanted to add some machines that were included in the modpack but were disabled so we couldn't see them neither in the search bar nor in gamemode 1. So we enabled the mods on our computers but in the server although now we can search and see the machines we are unable to craft them. I believe that this issue has something to do with the mods of the modpack in the server. Is there a way to check which mods of a modpack are enabled or disabled?

Ok. Thanks for your reply.