It is not clearly visible in the pics, but it seems the black alu spacers might have pushed the bearings too far into the rear linkage. The spacer tube between the bearings seems to be missing, so tightening the bolt will push the bearings in and deform the frame.
I think you will need a new rear triangle as the bearing seats have been pushed inwards. Check your frame carefully at the inside for cracks resulting from the deformation.