Shower Door Repair

[rames14]

Went to use the shower last night and the roller fell off of the left side door. Has anyone found an easy way to get that screw back in the roller, or do you have to take the entire track off? If so, what order do you remove the frame?

[Klonerama]

https://www.trekwood.com/parts-search.php?model=Montana&year=2017&category=Door&s ubcategory=Shower&search-keywords=Item+%23+%2F+Keyword