I am trying to install your J51 Vitality template to my Joomla 3.7.3 site. After downloading the Vitality file to my computer from the My Downloads and then extracting the file, I tried to upload and install the j51_vitality.zip file on the Extensions: Install page. I then receive the following messages:

Warning
JFolder::create: Could not create folder.Path: /home/content
Warning: Failed to move file: /tmp/php3jOPbI to /home/content/24/7805624/html/tmp/j51_vitality.zip
Error
Archive does not exist
Unable to find install package

Could you give me some guidance? Thank you.