If you do not want to delete the user completely and you will need to activate it again after a while, you can disable the user;
- Step 1: Select your profile photo from the top right of the screen and then click on the "Admin Panel" button from the drop-down menu.
- Step 2: Next select the “Users” section and select the user you want to disable and click the “Disable User” button.
After you disabled a user, user appears “Disabled Users” section. If you want to activate this user, go to disabled users section, select the user you want to enable and click the “Enable User” button.