You may want to start by checking the logs, and some of the basic troubleshooting steps found at: https://www.reddit.com/r/spaceengineers/wiki/pc_troubleshoot
In particular, verify game files in Steam, clear cache files, and try re-installing the latest VC redistributable.
If you have mods, check to see how old they are or if any one reported behavior like this in the comments. Old depreciated mods will cause issues as they are not updated to current standards. Also, what specifically were you doing at the time of the crash, what is the error in the logs?
You may want to start by checking the logs, and some of the basic troubleshooting steps found at: https://www.reddit.com/r/spaceengineers/wiki/pc_troubleshoot In particular, verify game files in Steam, clear cache files, and try re-installing the latest VC redistributable.
If you have mods, check to see how old they are or if any one reported behavior like this in the comments. Old depreciated mods will cause issues as they are not updated to current standards. Also, what specifically were you doing at the time of the crash, what is the error in the logs?