NoMethodError in ReportsController#subreport

[holber0]

Hi,

I'm testing your Reservation Tool. When i want to create a report for a Equipment Model, i got this Error:

66 67 68 69 70 71	EquipmentModel.where(category_id: params[:id]).collect(&:id) else sanitize_sql(params[:id]) end # also NOT a SQL-injection -- id_symbol is built by ClassFromString,

do you have a solution for that?
thanks!