Problem
You are unable to create a backup.
Cause
Your antivirus blocked a file during installation or update.
Solution
1) Update your antivirus program.
See also: https://support.avast.com/en-us/article/update-antivirus/ (https://support.avast.com/en-us/article/update-antivirus/)
2) Download and reinstall the Payroll4 update via this link:
https://www.itman-nv.com/en/update/p4a (https://www.itman-nv.com/en/update/p4a) (Payroll 4 Aruba)
https://www.itman-nv.com/en/update/p4b (https://www.itman-nv.com/en/update/p4b) (Payroll 4 BES)
https://www.itman-nv.com/en/update/p4c (https://www.itman-nv.com/en/update/p4c) (Payroll 4 Curacao)
https://www.itman-nv.com/en/update/p4s (https://www.itman-nv.com/en/update/p4s) (Payroll 4 SXM)