Canadian crypto exchange QuadrigaCX says it cannot repay most of $190 million in client holdings after its 30-year-old founder Gerald Cotten, the only person who knew the passwords to its “cold storage,” unexpectedly died in India in December 2018, Coindesk reported on Friday.

In a sworn affidavit with the Nova Scotia Supreme Court, widow Jennifer Robertson said that QuadrigaCX owes its customers some $190 million in both cryptocurrency and fiat money. QuadrigaCX has filed for creditor protection because it says it cannot access the funds stored in “cold storage,” just the comparatively smaller amount in a “hot wallet” used for transfers, CoinDesk wrote: