Hi guys I posted this on reddit but no one is helping so i'm hoping someone can here.

I sent an sx transaction a few days ago which didn't arrive and has been seen by 0 peers. I'm also having trouble with the blockchain it wouldn't update (No block source available) I tried adding the nodes as suggested in numerous threads but no Joy I deleted peers.dat and no joy, I deleted everything apart from wallet.dat and no joy. So then I decided to backup the wallet and import the backup and then it started to update but the wallet kept crashing so I had to keep restarting to resume until I got to 43 weeks and then it got stuck with a new error message stating "Warning: Displayed Transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade". To rectify this I tried starting the wallet with the flag -checkblocks=0 -checklevel=6 but it doesn't fix it. Im not to concerned about this wallet though as I have a really insignificant balance I am more concerned about the transaction I sent so if I can fix that and lose the wallet I don't care.  I very much appreciate any help you can give me.