Paste Special throwing error first time

I have the following snippet where I am trying to copy a range from a different sheet to a new sheet.The first time when i run this sub,it throws out the 1004 error stating that paste special method failed.But the next time i run the same using a button it works.Any solutionto this is appreciated.(The commented ones are the things i tried)

Application.CutCopyMode = True
    Range("T37:V1000").Select
    Selection.Copy
    
    
    Sheets("Summary").Select
    Worksheets("Summary").Activate
      ActiveSheet.Unprotect
   
   
   'Worksheets("Summary").Range("C40").Select
   'Worksheets("Summary").Activate
   'Worksheets("Summary").Activate
  
'Range("C40").Select

'On Error Resume Next

 'On Error GoTo ErrHandler:
 Range("C40").PasteSpecial  ' cause an error