Erdoğan has done nothing good to solve the crisis and is just firing the central bank administrator one after the other.
The central bank has brought so much lira with its foreign currency reserve to try to maintain the price that it is almost running dry of any foreign currency, making the future look even bleaker.
Because of this, the population has been rushing in putting their money in other currency/assets (like euro, gold, dollar, ...), which is making the situation worse, so the government has been actively trying to force people to keep their money in lira and even buy more lira if they can.
So whatever they say about it, it is just another move in this direction. They want to prevent people from buying cryptocurrency and further risking depreciating the lira.