the case is that i can't send btc from electrum wallet macOS because of error 'nonetype has no attribute get' i has tried to restore my wallet by secret key via blockchain.info wallet, but it says 'incorrect seed'. When I open electrum i see my btc and state 'connected'. What should I do? Thanks
Try first what AdolfinWolf said. Perhaps you will get solution. If there is still problem then your blockchain.com process is wrong I think. You don't need to enter seed on blockchain wallet in order to input an address. You will find your private key on you Electeum wallet. There is individual private key for each btc address. You need only private key which address you hold btc. Then input your address on blockchain with private key. You need always private key for every transaction. If you don't know how to find private key then I have to sit on pc or someone else will help you. Note it only you need private key in order to input address on blockchain wallet. Doesn't need seed. It will need only for recover Electeum wallet itself.