This is a very curious issue... unfortunately the error messages are truncated to the point that I have no hint as to what is wrong.
I want to get to the bottom of this particular issue. How many people are having this problem?
So far as I know, many people have this issue, most of them, if not all, are using window wallet, and this issue happens after importing the backup .json file to the new wallet.
Ok... that is a HUGE hint (backup .json)...
To give you more hints, I would like to describe the whole procedure for importing the .json files.
1\export the old wallet to somewhere, naming it 123.json
2\delete the old wallet, install the new wallet, copy 123.json to btsx directory in the folder bin
3\create a new account, go to console type " wallet_creat_from_json 123.json newwalletfoldername password"
4\Now I can see all the old accounts in the new wallet. Close the wallet.
5\Go to roaming\btsx\wallet delete the folder "default", rename the "newwalletfoldername" to default
6 \reopen wallet, finding that transfer fund to any account is impossible