Power Outlet fuse - CIG fuse in instrument panel J/B (LH cowl side panel) as shown in diagram here is a guide to help you test it with diagrams below to show you the location.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Cheers

We were using our cigarette lighter adaptor for power with a car adaptor when suddenly none of the adaptors worked any longer. We looked for a blown fuse, however, we can't tell which one applies to the outlets. Nothing else seems to be affected.
Thank you.

On the driver's side junction block, the cig fuse is on the furthest column to the right, lowest fuse. 15 amp.