The boarding pass encounters an error if a missing device is still linked to a check-in step.
Some recommended actions to take when removing a device to avoid this error are as follows:
Unpair from Check-in instructions
Locate the specific listing and then open the check-in and check-out processes.
Modify which particular step a device is paired with.
Choose the blank "select a device" option from the drop-down menu.
Unpair from listing
Navigate to your devices in the office Business Settings.
After selecting the correct device, view the listings by scrolling down.
Uncheck the listing that is associated with the device in question.
Click "Save."
Delete device
Wait until the changes are saved from the previous step.
Click Delete Device.
Hit Save.