My Mintcoin Wallet is no longer starting.


Error it tosses is :
 Assertion failed
 File: src/kernal.cpp, Line 415
 Expression: pindex->pprev || pindex ->GetBlockHash = = (ifTestNet ? hashGenisusBlock : hashGenisusBlockTestNet)

When attempt retry get:
Visual C++ Application terminated in an unexpected way, with details:
  Fault Module Name:   MintCoin-Qt.exe
  Fault Module Version:   0.7.2.0
  Fault Module Timestamp:   5619cedc
  Exception Code:   40000015
  Exception Offset:   00fb30cf
  OS Version:   6.1.7601.2.1.0.256.48
  Locale ID:   1033
  Additional Information 1:   7034
  Additional Information 2:   7034e8e3d5717ce40d91992904405ea1
  Additional Information 3:   38dd
  Additional Information 4:   38ddbbc9aab7f12f433ce0c583cbaaee

 Downloaded and re-installed, mintcoin wallet, latest Visual C++ and latest Net 4.6 -- no change
Last ran a few days ago...

Any help?