Unable to upload theme.

Hi, I am making a wordpress website. But when I try to upload the .zip file of the themes I want to use I encounter this error: Unable to create directory wp-content/uploads/2024/09. Is its parent directory writable by the server?
I tried changing the permission of all the folders to 755 and files to 644 but it didn't work. When I check the wp-content file there is no uploads folder either, there is just a theme folder and a plugin folder and index.php.
Can anybody help me with this problem? Thank you so much in advance.

 

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