edit: it's already staking ... anyway, again, it started staking, but the moment it received coins the wallet went out of sync, end after a while, the coins were orfaned again with the wallet resync :/ it's been like this the whole day today.
How many connections your wallet has? Check at menu Help > Debug window, it should have at least 8 connections in few minutes after you started it. Staking or solo-mining with less connections and / or slow Internet connection can easily result in orphans because of slow data propagation to the rest of network.
Once at Debug window switch to Console and at the bottom type
checkwallet you should get response
"wallet check passed" : true if not, use
repairwallet and then restart. If none helps start wallet with
-rescan option.
Also, from screenshots you have posted I can see that you are not using wallet encryption (password) which is a very bad idea.