Wallet today got stuck on block 882905.. won't sync past that.. something happened out there...never happened before.
going to guess you had a stake mint while not synced up if so here is some info.
back up your wallet.dat for safety first.
"If your wallet did stake while out of sync there is no other option but to delete blockchain files and re-sync from the scratch.
Never stake on unsynced blockchain - wallet will go to its own fork and will be unable to sync with the network."
"Please make sure wallet is not staking while syncing. I'd suggest to encrypt the wallet and unlock it for pos only when synced, or sync with a new empty wallet."
you can use the console command to shut off staking reservebalance true 100000000 (some large number). When you choose to mint enter reservebalance false and it will stake.
*edit*
added the info to the op