Robot became synonymous with home robots when it introduced the Roomba vacuum over 20 years ago, eventually selling 50 million models and becoming an acquisition target for Amazon. But the company gave investors a stark warning Wednesday,

After its latest financial figures were worse than forecast, the company said there’s “substantial doubt” it can survive another 12 months.

iRobot, maker of the Roomba autonomous vacuum, has suffered over the past few years from slumping sales, failed new products, and an aborted takeover attempt by Amazon.

The loss-making company was once valued at $3.56 billion in 2021, driven by pandemic-fueled demand. It is now worth less than $200 million.