My bitcredit chain wont sync (btc chain was fully synced), it stayed at block 6322 or something like that (6 days behind). Once I closed and reopend qt i got error
*** Error moving claim tip. Expected active bitcredit block: 0000000000000000000000000000000000000000000000000000000000000000, was: 0000000013a663baba47abad9d88f5a4bde47e9655c38b2eb474f443093cd019
*** ERROR: Bitcredit: ConnectBlock: Failed to move claim tip to 0000000000000000189a6d0d46b0364748c4c2249ba4a3cbb45db99abcbfd2a9
ERROR: Bitcredit: ConnectTip() : ConnectBlock 000000005fc6f4b75a16b644bc1bd975ec71e7bdfab3144d84915d0efae490d2 failed
edit: I used the block chain file from torrent
The fastest way is probably wiping your working directory and restart with a new fresh working directory from the downloaded torrent. I suggest you also look at the log output if the gui appears to be stuck. The interface do not update very well when the Bitcredit chain syncs. Don't forget to backup bitcredit_wallet.dat when you wipe the working directory.
The error message means that you have inconsistency in the state between Bitcoin and Bitcredit. This is normally a non-recoverable error. This error is known and work is being done on handling the problem. Unfortunately it causes some problems for people at the moment. The inconsistency may appear if the Bitcredit-Qt process is killed in the middle of a chainstate update.