Question about padbuster ... newbie

New to this type of attack trying to understand this .net oracle padding attack, i'm using this data :

padbuster http://ift.tt/14LbTjF EkIw9i8hChjP_nuqGrT3s8rxntkAiG3TGimvybqMf__tcw10GCO0odSOA1XbLy49N6SbB7O3zkdZuSKdG8IJgRcjH0myrb2kCR0Epem-HDIB7vYIUr_71uvYarEEFTV6Szv50Wpsr0A0218420DiUU1D4-NcTi4zxgAJaW8owIQ1 -plaintext "|||~/Web.config" 16

And i see this error:

+-------------------------------------------+
| PadBuster - v0.3.3                        |
| Brian Holyfield - Gotham Digital Science  |
| labs@gdssecurity.com                      |
+-------------------------------------------+

ERROR: Encrypted Bytes must be evenly divisible by Block Size (16)
       Encrypted sample length is 124. Double check the Encoding and Block Size.

I'm doing something wrong ? or what is the correct block size 124 ??