Manager getting crash in mac system

Manager crashes when trying to generate pdf , need to restart the application again and again. Even not able to take backup.

I go this issue after i update my version to 21.1.27

What version of macOS are you on? And are you certain you actually updated to Manager v21.1.27? There were fixes that addressed problems like you describe on Macs. I cannot reproduce either of your problems with v21.1.27.

MacOS Mojave
Version 10.14.6

Why not update your operating system. It is free. There have been two individuals who reported crash problems with macOS 10.14.6 that no one can reproduce.