I just checked and there is nothing in this Collection that is missing from the Workshop - my hunch is that the crash is related to you having too many assets subscribed and/or running out of memory on load. This can also explain why some assets are shown as "missing" in your crash log. If Cities runs out of memory it simply stops loading assets, but does not always crash as a result. Also, missing assets are not in themselves a reason for a crash - the game will simply not use the assets that it doesn't find or have. If such an asset is discovered by the game while playing a pop-up error will be displayed, such as "instance not found".

I may not have included some assets such as certain props. That would have been done on purpose. I will, however, look through and see if there is anything that's been deleted or is missing now.

Still; Cities Skylines crashes sometimes due to system issues that have nothing to do with the content but may be related to memory overload or something else. There are also mod conflicts and other things that can lead to crashes. How many assets are you subscribed to when trying to launch a game using this Collection?

It also bears mentioning that this and the District Style within it has thousands of subscribers and no one else has said anything about crashing or not working - and I have made 28 Collections and District Styles and have not had that kind of feedback typically. I am fairly certain this Collection and District Style still work as they did for me when I created and play-tested them both.

Crash log indicates a lot of assets are missing. This collection is incomplete.