Stricker Awakening, mission name: Descent of fury

the mission requires you to use something called Vicious Mind of Concentrated Time, But it seems like there are some bugs. I tried so many times to summon this, however, the system just keep prompt "The monster has been summoned." I can not pass this quest until I summoned this boss, please send someone to help.

 

I know it might not be easy, but this forum has several sections. You just happened to post this in the wrong section of the forum, which is probably why no one has bothered to answer you until now.

So...First up, to make things easier, I suggest that you make a general websearch, then afterwards make one in here, and only after making sure that there aren't threads about this topic, only then make a new thread.

If I were you, I would add a "delete" to the title of this thread, and make a new one in the correct section: GamezBD Questions.

However in this case, I think the answer to your query is quite simple: Forfeit and retake quest, which is the standard approach to any questline that seems bugged