Epson L360 Error Message

I have a MacBook Pro running OS X 10.13 and a MacBook running OS X 10.6.8. Recently I bought an Epson L360 and installed the software on the MacBook Pro, and the printer works fine with it. Then I installed the software from the Epson site on the MacBook. When I try to print it doesn't print. When I go to the print queue there is the entry Error Library/Printers/EP...BER 31.dock. The BER 31 is the last part of the document's title. Anyone have any idea what this message means?

The...

Epson L360 Error Message