Problem With Custom Clothing

Ok so, when i try and add custom clothes I have a 200+ clothing gap in-between clothes https://streamable.com/6d4joc , yes the custom ones don’t work. if anyone could tell me what I’m doing wrong or what the issue is that would be great. (yes i have a key) Also I don’t know whether this has anything to do with it but this error happens.
https://imgur.com/a/mgabZhE

you have patreon and if yes you have onesync trun on?