error when trying to open designer
Can somebody help understand this problem?
Application: Designer.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.FormatException
at System.Number.StringToNumber(System.String, System.Globalization.NumberStyles, NumberBuffer ByRef, System.Globalization.NumberFormatInfo, Boolean)
at System.Number.ParseInt32(System.String, System.Globalization.NumberStyles, System.Globalization.NumberFormatInfo)
at FastReport.Design.PageDesigners.Code.CodePageDesigner.UpdateFont()
at FastReport.Design.PageDesigners.Code.CodePageDesigner.UpdateDpiDependencies()
at FastReport.Design.PluginCollection.UpdateDpiDependencies(System.Object)
at FastReport.Design.ReportTab.UpdateDpiDependencies()
at FastReport.Design.Designer.AddReportTab(FastReport.Design.ReportTab)
at FastReport.Design.Designer.InitTabs()
at FastReport.Report.Design(Boolean, System.Windows.Forms.Form)
at FastReport.Report.Design()
at Designer.Program.Main(System.String[])