I've been having the same issue and the game was working fine a few weeks ago when my daughter was playing it. I've tried uninstalling and reinstalling, i've tried running the game without origin and running it straight from the bin file (C:\Program Files (x86)\Origin Games\The Sims 3\Game\Bin). I've tried running it as admin and even tried using the repair option. Nothing has worked, It is really frustrating. i posted all my pc specs for my pc bellow.
CASE: Corsair Obsidian 450D w/ USB 3.0, Fan Control, Side Panel Window
OPTICAL DRIVE: 24X Double Layer Dual Format DVD+-R/+-RW + CD-R/RW Drive
CPU: Intel(R) Core™ i7-4790K 4.0 GHz 8MB Intel Smart Cache LGA1150
GPU: EVGA Superclocked ACX 2.0 NVIDIA GeForce GTX 980 4GB GDDR5 PCIe 3.0 x16
MOTHERBOARD: ASRock Fatal1ty Z97 Killer/3.1 ATX w/ Intel GbLAN, 2 PCIe x16, 2 PCIe x1, 2 PCi, 1 x M.2, 8x SATA 6Gb/s HDD: 256GB SANDISK SSD + 2TB SATA III Hard Drive Combo (Combo Drive)
MEMORY: 16GB (8GBx2) DDR3/2133MHz Dual Channel Memory
POWER SUPPLY: 600 Watts - Corsair CX600M CX Series Modular 80 PLUS BRONZE Certified Active PFC Power Supply
COOLING SYSTEM: Corsair Hydro H90 140mm Liquid CPU Cooling System w/ Copper Cold Plate - Enhance Cooling Performance (Single Standard 140MM Fan)
OS: Windows 10