Happened to me today. All 6 screws broke from plastic mold and this bar was dangling only on gate latch cable.
Every used part available in my country has the same issue, so repair is the only option.
My first thought was to disconnect internal mold (with the screws) from external panel (the one with paint on it), drill holes where screws originally were, put screws from other side, secure them with epoxy. Those two parts have latches and looks like they can be separated, but unfortunately they are also glued together. So no-go, this plastic is so brittle that trying to unglue it will probably break it even more.
So my next idea is to use... drywall anchors. Drill holes where screws were and use anchors that will expand inside empty space of plastic mold and provide enough resistance to secure it firmly. I'll go shopping and write follow up how it went.
- I also found this solution but it falls into butchery category in my opinion, so this is last resort.