Ive seen other people fix this by uninstalling the 1041 module and reinstalling it.  You wont lose your client data files.

Close ProSeries.  Use Windows Add/Remove Programs and find ProSeries 2019. 

Click Uninstall.  It will act like its going to uninstall the entire program, dont panic, it wont. 

Choose 1041 in the window that opens.  Uninstall it. 

Now Restart the computer and start up Proseries 2019. 

Go to Updates > Select and Download New Products, make sure the 1041 is checked, click Next and reinstall.

Any better luck?