One of our council members has accidentally kicked a player out of the alliance. Is there a way I can contact him to tell him it was a mistake and come back?
Unfortunately, there is no current in game way to do this. You can use the Alliance Gate forum here. Did your alliance have any communication tools outside of game?
If your lucky, he will join another alliance before his name disappears from the chat window, click on his name, view base, see what alliance he is now in, search that alliance and infiltrate it and hope you can reach him in time.
This is why we have Line app so in case there accidental kicking, we can still communicate outside of game. Highly recommend external communication tool
I publish my personal email in the alliance message board. In case anyone anything they can still contact me. I tried line but my members were not active to join in so i gave up.
Place a message for him in the motto, if he was a loyal member he won't get over the kick in 1 or 2 days, he'll keep checking the alliance from time to time.
Happened once with a guy who wasn't in the external chat group, fortunately he joined sister alliance and asked why he was kicked.