Whenever I try to play on my server I get the error "This server requires you to install Origins mod (v1.4.1) to play"

I have spent the last while setting up a new server on Aternos to play on with several mods. I finally got the last of it set up and went to play and I got this error code. I uninstalled and reinstalled it from Aternos and restarted Minecraft and the server several times. I already have the file for the Origins mod in my Mods Minecraft file on my computer.

There was also a comment on the CurseForge mods page (where I got this help link from) that complained about the same issue a few hours ago.

Would be very thankful for any advice or help with this issue. Thank you so much!

Well I realized I wasn't playing on the Fabric version which may have caused it but now I'm getting this message? Does this mean I need to download all of the mods to the mods folder or something else?

Yes, generally most mods which add any content to your game need to be installed on the server and on the client (the mods folder on your local computer). If you don't do that, this error message is what you'll see.

What do you mean by not having the "fabric version", and how exactly do you download it on the client because I have it in my mods folder?