The price of cryptocurrencies plunged and crypto trading was delayed on Tuesday, a day in which El Salvador ran into snags as the first country to adopt Bitcoin as legal tender.
Shares of blockchain-related firms also fell as crypto stocks were hit by trading platform outages. But the major focus was on El Salvador, where the government had to temporarily unplug a digital wallet to cope with demand.
Bitcoin, the world's biggest and best-known cryptocurrency, tumbled more than 17 per cent to $43,000 (€36,318) before paring some losses to trade down 9.2 per cent at $47,140.27 (€39,814.67).
Earlier Bitcoin had hit a session high of $52,948 (€44,719.88).
Smaller rival Ether, the coin linked to the Ethereum blockchain network, fell 11.99 per cent.
Major cryptocurrency exchanges Coinbase Global Inc and Kraken said they faced delays in some transactions on their platforms.
Coinbase said some transactions were delayed or cancelled at "elevated rates" and that "our apps may be experiencing errors".
The exchange later said issues with Coinbase card swipes were resolved and that transactions were going through normally.
The Gemini exchange said it temporarily entered a full maintenance period to address an exchange-related issue that caused performance trouble.
Coinbase shares slid 4.02 per cent.
Anything related to cryptocurrencies appeared to suffer. Cryptocurrency miners Riot Blockchain fell 7.38 per cent and Marathon Digital Holdings slipped 7.76 per cent.
Shares of MicroStrategy Inc, a BTC buyer and business intelligence software firm, fell 7.64 per cent.