Hello ATMUS,
Welcome to the Microsoft Community.
It looks like you're encountering an assertion failure in a program that uses the Microsoft Visual C++ Runtime Library. This specific error is related to the WebM Project and occurs in the webmmfstreamaudio.cc file at line 455, with the expression curr_ns >= 0 failing.
In which application or usage scenario did you meet this error message? Assertion failures are typically used during development to catch bugs. If you're seeing this in a production environment, it's possible that there's an unhandled edge case or bug in the software.
If you have access to the source code, you can run the application in a debugger to get more information about why the assertion is failing. This can help you understand the conditions under which curr_ns is negative.
On the other hand, you can try to Update Visual C++ Redistributable Packages. Make sure you have the latest versions of the Microsoft Visual C++ Redistributable Packages installed. You can download the latest versions from the Microsoft website. Latest supported Visual C++ Redistributable downloads | Microsoft Learn
Best Regards,
William.Y | Microsoft Community Support Specialist