I've removed Laravel from app.ppblk.space for you. If you need any of the data from that domain, a backup of the account from before the deletion can be downloaded at https://heliohost.org/backup/
I didn't need to remove the learn.ppblk.space content as the disk space went below 1000MB from removing the app.ppblk.space files. If you want to uninstall Wordpress on this yourself, you're welcome to do so. I did reissue the SSL certificate since that wasn't working.
Since I had to change the document root on the app subdomain back to its default after removing laravel, it may take up to 2 hours for everything to work normally.