Help with Cura (creality Slicer)

I have a creality cr10 smart pro.
I recently tried to print this print off thingiverse " [Nerf Mega Titan Magazine by Xero1Tec] "

it only prints halfway and then complete like it finished. Looking at the image in cura after sliceing it show the part where it stops printing in Red. I read that it is either a overhang or some other error I have not figured out how to correct this. does anyone have any advice hot to fix this. I may try another slicer. but just thought if I can find a solution it would help me understand if i come across this again.

Thanks in advance to anyone for assistance.