If you are unable to 'Save' or 'Delete' various things in your Simple Salon account, it means that somewhere along the way you have clicked OK to a browser setting. To get it back to normal, you need to reset your browser settings.
Follow the simple steps in this article to restore your Safari browser settings to their original defaults:
Click on Safari > Preferences:
Your preferences window in Safari will then display:
Click on the 'Privacy' icon and click the 'Manage Website Data' icon:
On the following page, click the 'Remove All' button:
Click 'Remove Now' to go ahead with the change:
All Done! Try logging in to Simple Salon and attempting to delete, move, or save things in Simple Salon.