Control arm hits the frame

Hello everyone!

I hope you can help me to fix a suspension problem. To give a better description of my problem I copied a photo from a another thread - hope thats okay.

My problem is that a part of the control arm (see red circle) hits the frame and I don't know how to fix it. Do I have to put more tension on the torsion bar? Or do I have to remove the torsion bar, pull the part of the control arm (red circle) down and reinstall the torsion bar - is that possible?

Thank you in advance!
Danny