The two-day cash register glitch at Target stores this past weekend may end up costing the retailer about $50 million in lost sales.

That's the impact expectation from Kantar Consulting Chief Knowledge Officer Bryan Gildenberg, according to a Chicago Business report. The analyst based his estimation on projected weekly Saturday sales figures. Target did not comment on the financial impact prediction, noted the report.

As Retail Customer Experience reported, Target cash registers crashed due to what it called an internal technology issue. Target, in a tweet, said the issue was not a data breach or security-related issue and that no guest data was compromised.