Issue
An exception error occurs when installing or uninstalling the mac CUPS driver for the PB SP-100 Printer.
Cause
This error is seen on Macs running OS 10.14.5 or later and is caused by updated software.
Resolution
- When the message "Software_PBSP100CupsDrv_MAC_v1.0.0_Installer.pkg" can't be opened because Apple cannot check it for malicious software shows, Click OK.

- Open System Preferences and click Security & Privacy.

- Click Open Anyway button.

- Click Open.

UPDATED: October 07, 2020