What to do if my wheelchair can no longer be folded (quick release axles bump)?

What to do if my wheelchair can no longer be folded (quick release axles bump)?

Install the QRX according to the assembly instructions (note correct diameter). For Sunrise wheelchairs, the distance between the plate wheel drive and the pair of balls of the QRX is always 51 mm (except for Helix)Attention: Adjust the adjusting screw for the release lever correctly and glue it in place