Sun Shade Repair

[u/katiepenguins]

We had this plastic sun shade up over our garden for a couple of years. The second picture is an intact corner, with a strap sewn into the shade and a D-ring.

One of the straps (canvas? plastic?) broke. Obviously the D-ring pulled off, and some of the stitching holding the strap to the shade has come out as well.

Can I fix this myself? If not, is there somewhere I can take it? Or do I just need to buy a new one?