Shower Door Repair Calgary I Have A Glass Shower Door That Is Not Align. Several Balll Bearings Are Not With The Glass Doors?

I have a glass shower door that is not align. Several balll bearings are not with the glass doors? - shower door repair calgary

I wonder if I solve the brackets and the ball in square brackets. Please tell me your thoughts on how to repair a shower door glass does not slide easily / CLOSE.