I have over 16 years experience with crystal reports development. I have created, converted, and updated reports based on multiple database structures to include MS SQL Server, Oracle, MySQL, MS Access, MS Excel, and DBF files. I have deep experience with data reporting using sub-reports, crosstabs, grouping, summaries, variables, and all other Crystal functions and capabilities. I'm very familiar and experienced with updating or converting existing reports to various versions of Crystal Reports to be used as stand alone reports or within an application.
I have vast experience with all Crystal Reports versions (8.5, 9.0, XI, 2008, 2011, 2013, 2016)and also have most versions installed in my development environment.
I've looked over your files provided and did not see the recommendations field being used currently. There are also many subreports used. All data seems to be sourced from database views. This could explain why recommendations field is not found. It could be added to a view or table could be linked to existing report.
I am comfortable working with reports with data saved for report development or remote access to your database environment. I would love to help you in this effort for your reporting needs as I am available to start immediately.