okay i tried to make a party but the page pops up but no party themes pop up its blank and when the page pops up all i get is a lastexception and in the lastexception it says, (IndexError: tuple index out of range) and yes i've uploaded my lastexception onto discord but i didn't get any help so i'm trying to here if someone had this problem and fixed it somehow i would love to know what this error is because its just plain weird i've never seen it before

Did you update UI Cheats and More Columns in CAS, if you have them?

oh wow i thought they updated the ui cheats extension i just went to it and it said outdated, and i don't have more columns in cas so it must be the ui cheat thanks i'll try it without the ui cheats extension

The updated version of UI cheats is at Weerbesu's Patreon, he doesn't update his uploads at MTS anymore
https://www.patreon.com/posts/ui-cheats-v1-14-26240068

ohh i forgot

is mccd considered a ui cheat?

are you talking about MCCC by Deaderpool? It is a robust program that does a lot more, - but like everything else, frequent updates are given and it should be updated.

It isn't just Weerbesu's UI tool that can affect the user interface. I have had issues with KawaiiStacies SOL mod - and I have had issues with outdated script files. When you have the issues, in addition to researching whether they are updated (SIMSVIP.COM is great for checking out updated mods) you should really cull mods and try to replicate the issues you are having to determine what shouldn't be in your mods folder. It can be an issue with a duplicate of a file you have, an updated file in a folder with an outdated version, a mod that changes something in the game you don't have.

ah okay i'll see what i can do thanks