If the error is showing while opening BUSY Installation Process Start Auto, then you need to follow the below steps:
Step 1: Add the BUSY21.exe, BUSYwin21.exe, and BUSYwin folders to the anti-virus and firewall.
Step 2: Disable System Antivirus and Firewall (if possible, uninstall once antivirus)
Step 3: Go to the Control Panel, then click on User Account.
Step 4: Enable UAC mode. Never Notified
Step 5: Uninstall BUSY from the control panel and re-install BUSY with the latest set-up.
Step 5: and the Restart System