Exporting / Rendering anything on Rush gives Export Error, Error Codes 3 and 6

Hello, I've recently been trying to export a video from Rush but I can't seem to get it to work. Every time I try, it stays at Waiting with the video preview being a black screen, until an error popup shows up and stops rendering. Each time, the timecode is at 0:00, so I'm not sure what I can really do here.

Mainly, the error codes I've been getting are 6 and 3, neither of which means anything to me even with the descriptions of "Unable to create audio renderer" and such. I've attached a picture of the error itself in case there's something I'm mssing. (Sorry it's not just a screenshot, I couldn't get screen snip to work while Rush was still open for some reason.)

As well, I've tried exporting a different 7 second video which also didn't work properly, but for a different reason with the error code being -2147483648. Not sure if these two things are related, but it makes me believe this issue goes beyond just the video I'm trying to export.

I've tried exporting the project at 1080p and 720p, with the file sizes being 6945 MB and 3121 MB respectively. Each time I've also tried to export with Stereo audio at 60 fps on High quality.

I'm using an Intel i5-3470 with Windows 10 Pro and I have 8 GB RAM, which also doesn't mean much to me since I'm not really into computers but I'm hoping it means something to someone else. My computer runs very slowly pretty often, but I doubt that's the issue considering I've exported videos 3 times as long in the past.

I've mainly been using the newest version of Rush, 2.3, although at one point I switched to 2.0 and it still had the same issue.

So far I've tried everything I've found online, from switching versions to disabling hardware acceleration encoding in preferences. Normally I would just screen record the in-editor playback and move on butI'm worried this will continue to be an issue and would love to be sure it's not going to cause any more issues. If you need any more clarification or information I'll respond as soon as I can, and I'm thankful for any help you could give!