Chipotle's free Guacamole Day has a rough start.
Last week, the battling burrito chain announced that all customers who ordered a meal through the app or online on Tuesday, July 31, would be eligible to receive free guacamole.
But since Tuesday afternoon, dozens of social media customers complained that the chain's website and app refused to accept orders.
Customers have reported that the chain's app did not accept the code that allows users to add free guacamole to their orders. Others said that the website crashed the chain.
Business Insider's attempts to use the code to redeem free guac in Chipotle's app failed. Also, when trying to order on the site, the reporters encountered problems because Chipotle title page was temporarily unavailable.
A New York-based chipotle employee said she had met a large number of customers on Tuesday trying to get free guacamole. People seeking free guac were asked to call Chipotle's customer service number.
Chipotle did not immediately respond to Business Insider's request for comment, but confirmed the issues in a tweet.
The technical difficulties come at a time when Chipotle was able to make a profit.
The company's shares fell 8% on Tuesday after Business Insider's late Monday report revealed that more than 170 people said they had fallen ill after eating at a Chipotle site in Powell, Ohio.