cpanel worked - thanks
acme-challenge was my fault. This was done when I tried to install a self SSL. I shall remove that now. And yes, previously I used an ftp client to upload the files. This time I uploaded and extracted the files directly from the cpanel file manager. Now I have the files in a folder called nc_install. Can I install from there, or do I need to move the files into the nextcloud folder that I am am going to use?
Last, no one has answered if I should remove the database before new install? Anyone have thoughts on this?