Quote from: 6436346346 on July 13, 2016, 05:54:20 AM

I have been unable to sync the wallet, each time it stops at block 419999

Code:

ProcessBlock: ACCEPTED POW BLOCK
received block f7bb4b236fd97993a06e
ProcessBlock: ACCEPTED POS BLOCK
received block 00000001feb4396621eb
ProcessBlock: ACCEPTED POW BLOCK
received block 0000000906b7ffd3f935
ProcessBlock: ORPHAN BLOCK, prev=0000000b681c1f4e0311
Flushed 0 addresses to peers.dat 104ms
received block 38b84b9264d106a0932a
ERROR: CheckProofOfStake() : INFO: read txPrev failed
WARNING: ProcessBlock(): check proof-of-stake failed for block 38b84b9264d106a0932a6bcf8658dd8ee6112daf8634b5eca359f662e89ac70b
ThreadRPCServer method=getinfo
received block 8f1168a2ec8fd62075db
ERROR: CheckProofOfStake() : INFO: read txPrev failed
WARNING: ProcessBlock(): check proof-of-stake failed for block 8f1168a2ec8fd62075db3bb5bb3d5bdf7a62c2d880a25d93b3ff12b6c8a5b033
received block a481ae5ecc9eb783fc09
ERROR: CheckProofOfStake() : INFO: read txPrev failed
WARNING: ProcessBlock(): check proof-of-stake failed for block a481ae5ecc9eb783fc09c4d8bcc371f54f2fccd42f2fff0a1fbdfb9cddd728cf
Flushed 0 addresses to peers.dat 36ms
received block 38b84b9264d106a0932a

Any ideas?

Are you using the latest wallet version 2.1.1.0? You can get wallets from www.leocoin.org
If YES, you may try what cryptotraider16 says or just re-sync it: http://www.leocoin.org/Guides.aspx