Derar Islim, interim CEO of crypto market maker and lender Genesis, has sent a letter to clients updating them on the company’s efforts to prop up its finances and resume withdrawals and new lending. The Jan. 4 letter comes two days after a Twitter exchange between Barry Silbert, CEO of Genesis’ owner — the Digital Currency Group — and Cameron Winklevoss, co-founder of the Gemini crypto exchange, in which Winklevoss criticized Genesis’ handling of its problems.

“We believe we can arrive at a solution,” Islim wrote in the letter, to a report in Bloomberg on Jan. 4. But he added that this solution wouldn’t come fast:

“While we are committed to moving as quickly as possible, this is a very complex process that will take some additional time.”

Winklevoss posted an open letter to Silbert on Twitter on Jan. 2, accusing him of “engaging in bad faith stall tactics” with regard to Genesis’ $900 million debt to Gemini. “We are asking you to publicly commit to working together to solve this problem by January 8th, 2023,” Winklevoss wrote. He repeated the request in the thread, but Silbert did not acknowledge it.

Genesis’ current financial issues stem from funds locked in its FTX trading account. The company stated Nov. 10 that it had around $175 million in its account that was no longer accessible. Genesis halted withdrawals on Nov. 16 and reportedly brought in investment bank Moelis & Company to consult on restructuring the following week.

Islim told clients in a letter dated Dec. 7 that “it will take additional weeks rather than days for us to arrive at a path forward” to financial recovery.

Related: Grayscale ETH trust nears record 60% discount as nerves continue over DCG

Gemini engaged investment bank Houlihan Lokey to help it create a plan to “resolve the liquidity issues” that prevented Genesis from paying $900 million reportedly owed to members of Gemini’s Earn program. Winklevoss set a one-week deadline for a response to the plan on Dec. 20. On Dec. 27, investors sued Cameron Winklevoss and his brother, Tyler, over the blocked funds in the Earn program, accusing them of fraud and securities law violations.