Error code when launching group

I have Eve Steam Omega account, added a non steam Omega account then launched group. The non steam account froze after a few minutes so I logged out.
After I closed all accounts & launch client, reopened and the non steam account was no longer there.
I tried adding it again, but I kept getting an error message unable to do so.
Is there some trick I need to do in order to get it added?

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