It looks like there is a component definition with “roses” - Rosa gialla arbusto 2#1
And one without - Rosa gialla arbusto 2
Make group with component inside active, then you can open Window>Components you can contextclick(rightclick on pc) - Rosa gialla arbusto 2 >select instances.
While those are selected you can contextclick- Rosa gialla arbusto 2#1 >replace selected.
You have a lot of different groups so you may have to go into each group to do this. If any of those groups are the same you can make those into components and they will all update together.
Also, check out Thom Thom’s selection toys for some more advanced selection options for components.