Mysterious Roman Coin

Description

This coin was found in Bosnia and Herzegovina, during a regular metal-detecting search.
The reverse shows two worn human figures standing beside what appears to be a small altar or pillar. Most details are heavily eroded, and only fragments of the surrounding inscription are still visible.

We suspect it might be a Roman-era coin, possibly from the Imperial period, but the reverse design is too faded to confirm.
All suggestions and identifications are welcome