The so-called "chairman of the DNR government" Alexander Ananchenko went missing in the occupied part of Donetsk oblast. This is evidenced by the "official" reports of separatist media.
You can read in the news archives that at the end of January 2019, Ananchenko, who was "appointed" head of the "government" in December 2018, held a meeting, and already on February 5, Russian citizen Vladimir Pashkov was present at a regular event.
Meanwhile, Alexander Ananchenko is still current "chairman" on the "official" website of the "DNR government".
Pashkov, on the other hand, is deputy chairman of the government. No information is given on the reasons for such staff turnover.
Briefing note. An acting officer is appointed when the position of leader is vacant, and a candidate is being sought for this vacancy.