Yes. Unique name solves the problem. The new code is as follows:
Private Sub Command127_Click()
On Error Resume Next
DoCmd.OutputTo acOutputReport, "rptPrnAuto", acFormatPDF, "C:\Users\sreem\Desktop\RIC_RptToPdf\AutoAb.PDF"
DoCmd.OutputTo acOutputReport, "rptPrnCyto", acFormatPDF...