I'm working on a data mining macro that would pull pi data, but I keep getting this "Run-time error '13': Type mismatch"

This is what was highlighted in the debugger

Code:
'Use the first tag to obtain the # of rows of data, and get the timestamp for each row in phase j
                    TagArr = Evaluate("PISampFilDat(""" & TagCell.Value & """" & _
                        ",""" & Format(StTime, "mm/dd/yy hh:mm:ss") & """" & _
                        ",""" & Format(EnTime, "mm/dd/yy hh:mm:ss") & """" & _
                        ",""" & DataIntCell.Value & "s""" & _
                        ","""",0, 1,""" & ServerCell.Value & """)")


Any suggestions guys?

Thanks