Hello, I just joined a server and cannot get the mod to work on it.

I used the FTB app to load the mod into the pack, so it appeared in the mod list.
I tried all versions that were available on the FTB app.

I also downloaded and simply added the mods to the mod folder.

None of these work.
When I load into the server from the FTB app, there is no controller button.

It has always worked with my own servers and offline, but FTB puts it's files away from the general Minecraft folder.

Please can you help me.
Many thanks.
Anna May