Petunia P. Rat

When i go to the company site, the roads are disjointed and I cannot correct the problem. When I rearrange the topography through the 'build-it' mode, it just reverts to the incorrect arrangements when i end building. Also when i try to rearrange the roads there are red squares that will not allow building on top, yet there appears to be nothing there. I have tried to delete the roads and rebuild them but made no difference. i have visited other companies and their maps stay secure and in the right place.