You should use the Sandbox+ for SRTT mod instead of the Sr3 Ciy Mods With Awesomeness mod. The mod you are trying to use appears to be no-longer supported. Sandbox+ for SRTT has the same features as the mod you are trying to install, and its author, IdolNinja, is still active on this forum. Volition was so impressed by his work, they actually hired him and he's now an employee of Volition. Sandbox+ for SRTT is THE mod to have for Saints Row: The Third. My Working Elevators mod already includes a merged copy with Sandbox+ in the mod package, so it will work with that mod immediately. So use that mod instead.