Are you at Max Plunder? This could be a reason, to see if you are or not do this:
Hit the eb, look at your bonus from ALLIES then go and buy a small ally, so you won't lose all your gold and possibly waste it, look at your Bonus from allies again, if it's risen, go ahead and buy a newer and bigger ally, I suggest repeating this daily/weekly.
Hit the eb, look at your bonus from ALLIES then go and buy a small ally, so you won't lose all your gold and possibly waste it, look at your Bonus from allies again, if it's risen, go ahead and buy a newer and bigger ally, I suggest repeating this daily/weekly.