unfortunately on blockcypher it says after entering the transaction id that this transaction is double spent! Whys that? could it be because the update of the wallet?
what should i do now?
edit: this is the id b86301eb3719cd140b794544e23bc548c9ce6c932070f21fc3aee126044f1710
I can only find that transaction ID on blockcypher, and I can't find its double spend on any explorer. That transaction must be very badly propagated through the network, so you could remove it from your wallet and try sending your coins again with a higher fee.
If you want that transaction confirmed you could ask the guys who started this thread for help. They offer a free service.
https://bitcointalk.org/index.php?topic=1943939.0