My sister did some mods and I found it interfered with the top left and bottom right of the house does anyone know how to fix it.
By top left I mean shed
By bottom right I mean gate

As you and your sister have discovered, unfortunately none of the rooms fits neatly into just one map tile. That means that at least two adjoining tiles will need to be edited and merged together - since you say that the tiles containing the shed and the gate are affected presumably the mod is on the whole house and it looks like a large number of tiles will need to be edited.

There are a couple of tutorials on merging maps in the VF Mods forum and the discussion threads in the VF Mod Comments and Discussion forum might also give some help.

There's also a "Map Layout" of the VF property, where you can see how the map pieces fit together. It's excellent for identifying which adjoining maps will need to be modified. Click here to view it.

It doesn't matter anymore I downloaded a new mod (the winter one made by you). I love the winter one, just love it, love it, love it!

Hi Christopher. If you post a screenshot of the shed and gate areas, showing how your mod and the original maps aren't working together, perhaps someone could help you fix it.

Glad you're enjoying bringing winter to your little virtual family. Nancy, aka photophatty67, created the winter mod for Virtual Families, I simply did some merges of her maps with other modders interior designs. I did create the winter mod for Virtual Families 2 though.

Since I changed the entire house to winter there aren't anymore mod messups. But when there were when I changed from Lyssarias Deluxe House to BayouBlondes Tropical House here were the messups.
Shed was black with a corner of its original red
Half of Lussarias Deluxe exterior gone
the walkway was colored differently right in the middle
But you don't have to do anything. I'm fine with the winter one for now, the summer with winter stuff one for later and the fall leaves one for fall Im gonna keep changing between these mods every season.

I have another problem I'm trying to help a youtuber who uploads videos of Virtual Families named Hdog Mox. She needs help with her mods and she is not on the forums.

Never mind, I think I helped her but she won't reply back:(