Back in August 2014, the so-called Coolest Cooler was basking in its success as the highest funded Kickstarter project of all time with more than $13 million. Now, it's broke.

According to The Next Web, the Coolest Cooler has "burned all the way through its $13 million in funding, and is now searching for an investor to help bail them out." Many Kickstarter backers are still waiting for their long-ago promised cooler, which features a built-in blender, removable waterproof Bluetooth speaker, and USB charger—and as you can expect, they are not thrilled about the more than year-long delay.

In a recent message to backers, the Coolest Cooler team basically said they need more cash to fulfill remaining orders.

"We are in the process of identifying the right partner who can provide the capital and strategic resources to fund the remaining production of backer rewards and help grow the company to the next level," the Coolest Cooler team wrote, according to TNW (recent updates are only available to backers). "We're not quite there yet, but it is moving forward."

As the report points out, the cooler is still available for purchase on Amazon, even as some Kickstarter backers wait for their orders to arrive. Worse yet, the company is giving backers a hard time about issuing refunds, as you can see in the Twitter exchange below. 

For its part, the Coolest Cooler team says it's still committed to getting the tricked-out tailgate accessory in the hands of everyone who ordered it.

"While there have been delays, we are still working diligently to complete our project–and our obligation to our backers," Coolest spokeswoman Susan Towers reportedly said in an email to The Oregonian.

Towers added that the company has "contingency plans" to get coolers in the hands of remaining backers should it fail to find an investment partner. To date, the company says it has shipped more than 30,000 coolers — though it's not known how many of those units went to actual Kickstarter backers, given that the product has hundreds of Amazon reviews.

"The project is not complete and we remain 100 percent committed to fulfilling ALL backer rewards," Towers told The Oregonian.

Meanwhile, Pebble Time's 2015 Kickstarter campaign has since eclipsed Coolest Cooler to become the most funded campaign with more than $17 million.

This article originally appeared on PCMag.com.