Inside hardware in pictures I sent number( I 24 ) and in other (L-l20 )
Looks like you have an old Acorn Dorwal handle set. This isn't made anymore, since Acorn is out of business, but I believe you can use our 82-055 as a replacement. I would just make sure that the hole center spacing is the same on yours as it is on ours (3-1/2" apart).
You may also want to check the condition of your track and rollers. The kind of damage I see on your handle usually occurs when the door isn't rolling properly. That means you have to yank on the handle harder, which inevitably leads to it cracking. Just something to keep in mind. If that issue isn't addressed, then any new handle you buy will likely break in a short time, too.