Render Failed, Insufficient Permission

I was working on a project of which I have launched and succesfully rendered scenes of many times before. The last time I launched a batch render, the computer restarted without warning pop-ups and once it was back on and I launched D5 to get the last renders of the batch, I started getting this “Render Failed, Insufficient Permission” pop-up. This never happened before, and no matter which folder I select - on disk, drive or external device - I keep getting the same message.
Anyone knows how to fix this issue? I didn’t find anything online.

D5 Render: Version 2.5.1.0319
Graphic Card: RTX 3090 TI

Can you send the log files to us for troubleshooting? Running as admin may be a temporary solution. If the problem persists, we can arrange remote assistance.
support@d5techs.com

How to collect log files:
D5 Support Tool - Get Help / Tech Support - D5 RENDER FORUM