Mod available only in singleplayer, but not on server (decocraft)

I added mod exactly as shown in tutorial, and i even used the same mod.

Mod is shown in ˝files˝ folder and it is working in singleplayer, but no items are shown on aternos server.

I used correct version of ˝forge˝, ˝decocraft˝ mod and adequate ˝PTRlib˝ dependencie. EVERYTHING is double checked.

PLEASE HELP

https://mclo.gs/3YXE7Z1 Here you go.

Quote from Roman

Please share the server log using the share button on the log page.

Quote from Roman

Are you sure you installed it on the server?

What is your username on Aternos?

If there are no additional steps than i am, here's the screenshot.

Quote from Roman

What is your username on Aternos?

It is Vucko99

Any idea what is wrong?

Quote from Roman

Please try to delete the installed decocraft file and reinstall it.

I tried installing decocraft 2.6.2 and PTRlib 1.0.3 (both on pc and server) and it still doesn't work.

Also buildcraft mod doesn't work neither.