@Ah110507 Please install NRaas ErrorTrap and Overwatch, if you haven't already. If the crash happens at the same time again, look for a scripterror notification that happens immediately before the crash, say, within five to ten sim-minutes. If you see one, take it to the NRaas site and ask for help.
If you don't get a scripterror, install NRaas DebugEnabler. At 1:22, pause the game, click City Hall, and select NRaas > DE > Options: City Hall > Dump Alarms. This will create a scripterror as well, but a different kind. Take that to the NRaas site and ask for help.
In either case, when you're creating your post, drag and drop the file icon itself into the text window. (Don't open the file and c/p the text.) It should upload on its own, and whether you see it in the text window or not, the people who help on that site should be able to find the upload.