Errors, crashes, and blue screen when exporting

Hello, I am new to Premiere pro. I have having problems exporting videos. 

If I export a short video of a few minutes, it iexports with zero problem. 

I created a longer video using Adobe stock footage that was 9 minutes long. It exported very quickly. 

However, I have tried exporting other videos using MP3 and MP4 files that I have created myself. 

I tried to export a 9 minute video using Youtbe 1080 HD presets. At first, priemere crashed. Then it went blue screen with an error message "SYSTEM SERVICE EXCEPTION" what failed: vlflt.sys 

Then I tried to export a much smaller clip within the same workspace. It was 1 minute long. It exported with no problem. 

I opened another video that was 6 minutes long. It exported up until 96% and then premiere crashed. I exported that same video a week ago with no problem. 

My computer is brand new. It is a desktop custom build. 

Windows 11

Nvidia RTX 3060 graphics card 

Z599i motherboard for intel

DDR4 16GB x 2= 32 GB

1TB NVME M.2SSD

I have no idea what I am doing wrong.