Had this myself among many other error messages using the program itself, the openledger and the wallet.bitshares wallets on 3 different browsers.

Any help on what OS, browser, wallet anyone has managed to import bitshares 0.93 wallet into bitshares 2 and claim balance?

Closest I've got is in chrome on win10 using openledger wallet. Log in with a network name, create a new local wallet, backup then restore the 0.93 json file, which shows the unclaimed balance, import keys then wallet/lookup balances. it shows unclaimed balance & vested blances which i try to claim to my network username, from the dropdown, then get this error message.