I've discovered that using blade spirits has become a rather effective method of hunting and killing for me lately, and up until today was having great luck with it. But I've gotten a message several times today that I cannot summon anymore creatures as I "have too many followers." I know the limit any summoning of creatures is 5, but when using blade spirits today I've only been able to cast one and then keep the message about having too many followers. What the heck does this mean and how do I fix whatever problem this message is trying to tell me about? Help?!