How to re-enable a removed binary sensor?

This binary sensor stopped working several months ago (judging by the developer tool) for some unknown reason. I tried to revive it by restarting HA’s docker container. It didn’t help. Then I removed the sensor from within UI and restarted the container again hoping it will be recreated upon reboot. It didn’t happen - how can I restore this binary sensor now (and preferably make it function)?

Can I create this binary_sensor manually somehow after I have deleted it?

Can I re-create any binary_sensor after it was deleted via UI?

Have you tried deleting and re-installing the Jewish calendar integration?

Did the logging tell you something about the integration or sensor?