In the 5-1-6 Report Printing window, select Delete printing defaults from the Defaults menu.
Close the Report Printing window.
Reopen the Report Printing window and attempt to run the report again.

If error persists, do the following:

WARNING: This will remove all printing defaults from all users of this company.

Have everyone exit Sage 100 Contractor.
Back up your company data. See […]

Resolution for '51-6 Report Printing window issue: 'Error: Invalid parenthetical logic.Fill in missing fields and retry' available: Yes.

The 51-6 Report Printing window issue or error code is a known related to Sage Accounting products. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the 51-6 Report Printing window issue yourself by looking for a resolution described in the article. If it is a complex 51-6 Report Printing window issue or you are unable to solve the issue, you may contact Sage Repair by clicking here or by using other 51-6 Report Printing window support options.

For more information about resolving issues related to 51-6 Report Printing window in Sage Accounting or to get support for the issue 'Error: Invalid parenthetical logic.Fill in missing fields and retry', click the link below: