I can't export my project

Please help! I can’t export my project. Cubase Artist 10 crashes everytime. After reloading of the project there are no any sound. Only reloading of entire program helps. But export doesn’t working anyway. This problem appeared yesterday and I can’t find the reason.
I have attached the crashlog.
Cubase Artist 64bit 2019.2.2 0.34.dmp (780 KB)