Those urls are automatically retrieved from wordpress with the wp_upload_dir() internal function.
If your site was recently moved from http to https, then make sure that this url is changed everywhere on the settings, and also, adding these constants to the wp-confing.php might helps as well:
..otherwise some functions may return the old URL. This will make sure that the site URL and the home URL are forced correctly. After the change, make sure to clear your site cache as well.
If this does not work, feel free to add temporary FTP details, and I will check on the issue direclty. Thank you!
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