After the installation (and removal after the withdrawal of coins) on this computer electron cash wallet - when restarting after a reboot, an error appears electrum portable - error-3 from invalid block type, error decompressing pyQt4.qtgui.pyd.
I have to delete the folder and reinstall it every time.
If this is the Official Electrum, can you go to the network options and deselect "select server automatically".
Select a server that supports only the Bitcoin Blockchain and see if that helps.