If a user has been deactivated but then subsequently needs to regain access to their site then you can reinstate the user by reactivating their account.
Click on the launchpad in the top left and then the COG to access the Settings area.
In the settings area select the 'User Settings' App to bring up the list of current Users on the site. From here, use the feature menu '...' and select Show Deactivated to view all the deactivated users on the site.
Find the user that you would like to reactivate and click on that User to open their User profile.
In the Profile feature menu, you will have the option to click on Reactivate User. It will open up a window asking you to confirm that you would like to reactivate the user.
Once you have clicked to confirm the reactivation of the user, their account will be active again and the user will be able to log in.
To view active Users again, click on the User features menu on the screen showing the list of Users and select Show Active.
You can also perform this task as a bulk operation to reactivate multiple users at once. To do this select the Users that you would like to reactivate by checking the small box to the left of their name in the list of deactivated Users. Via the User features menu select the option Reactivate just like the single user example above. This will then ask you to confirm if you would like to reactivate the Users that you have selected.
Note: Reactivating a User requires the User to know their password for the account. If they do not know this then please email firstname.lastname@example.org for further assistance.