Error 10

Error Number = 10
Message =Syntax error.
Module =BACKFORM.CONTINV.GRID1.PREVIEWPRINT

This is possibly from a Field that is attempting to display plain text. 

EG: The Subtotal box is a Field type, but has no quotation marks so the report will treat this as an expression. The report will fail.   The Freight and Rounding boxes are within quotation marks so will print as plain text.

Alternatively, replace the Fields in the above example with Labels, as per the TOTAL text.  Labels are distinguished on a report layout because they show no border.