Chipotle stock tumbled on Monday on renewed food quality concerns after “Supergirl” actor Jeremy Jordan blamed the burrito chain for making him severely sick. The actor, who plays Winn Schott the show, posted an Instagram story on Thursday from his hospital bed, saying that “the food did not agree with me and I almost died,” according to People.

“I know I’ve advocated for them in the past, but they’re terrible,” says Jordan, who looks fairly pale laying in a hospital bed and showing viewers the IV in his arm.

“I, as you can see, am in the hospital and I have fluids in my arm because the food did not agree with me and I almost died…. I just want to thank my wife for being amazing and talking me off the ledge when I was on the phone about to die and Chris Wood for holding my hair back metaphorically,” he says. “I love all of you; thank you so much. It’s been a night.”

According to People, Jordan, 32, who was set to perform at a ‘salute to Broadway’ concert in Houston on Friday, says he hopes he is okay to go through with the show and has yet to update fans on his current status.

CMG shares fell as much as 4.4% in early trading on Monday, extending what has been a painful rout this year. Two years ago,

The incident will likely renew concerns about food safety at Chipotle, which has struggled to bounce back from an E. coli crisis in 2015 that sickened tens of customers.  The company had begun to restore its reputation in the past year, but a norovirus incident in Virginia and a viral video of mice at a Dallas location sparked a fresh round of negative headlines.

Chipotle also suffered a data breach earlier this year, an incident that hurt its earnings and contributed to another stock slump. This year’s hurricanes rocked Chipotle as well: It had 425 restaurants in the direct path of the storms.

Concerns about Jordan’s complaint going viral, Chipotle responded to the actor’s claims with the following statement to People:

“We are sorry to hear that Jeremy is sick and have attempted to get in touch with him directly regarding where and when he ate so we can look into this. We take all claims seriously, but at this time we can’t confirm any link to Chipotle. We are always committed to making things right for our guests and will do the same for Jeremy when we are able to reach him.”

If the stock price reaction to the denial is any indication, Chipotle will have to try much harder…