I downloaded this mod specifically for the JEI mod. That didn't work for survival so I then downloaded the FTB GUI Library mod (it said it in the error message in Minecraft).
The FTB mod said I needed the architecture mod (this current mod) but when I downloaded that..
(so I now have JEI mod, FTB, and Architectury), it says the architectury one is a fabric file?.
Can someone help me?

You probably downloaded the fabric version of architectury, please try to download the forge version.

You probably downloaded the fabric version of architectury, please try to download the forge version.

i did that, but now when I go into my inventory at the bottom right it says "There is not enough space to display JEI here."

That is not an architectury issue.

That is not an architectury issue.

I know that but I saw this problem only come up after I downloaded this mod & the FTB one. So I don't know what specifically is causing this. If you think it's the JEI mod I can go over to that mod and ask for help :)

I'll go over to the JEI mod issue page. Thank you for helping, you helped with the hardest part and I appreciate it. :)