In case, when you can't make a transaction, check the version of the MetaGate.
If it's actual, one of the solution - delete file "fill_nodes". You can find it in the .metagate folder.
After that - restart the app. Not enough to click "X" and icon again to restart MetaGate. You should click "Quit" in the tray(this line will appear after click of the right button).
Updated over 1 year ago