How to upload subfolder wp

I have a website seodio.com but need to upload wp subfolder but cant do ıt and couldnt fınd any ınfo on the ınternet

you mean folder like domain.tld/wp-content/upload ?
if yes
just go to media… upload 1 any picture…

or you need upload 1 folder ?
if yes
just zip the folder
upload
then extract from file manager
if error you can unzip from cli

UPload file using file manager like this How to upload a website files to CyberPanel (using File Manager)? | Hostinger Help Center