Magento API finished. Left with this error message on home page

Error filtering template: Notice: Undefined index: c009.008 in /chroot/home/add2533c/casterdepot.com/vendor/magento/module-inventory-source-selection-api/Model/Algorithms/Result/GetDefaultSortedSourcesResult.php on line 127

c009.008 is a product # that we use in our system –> but typically it should be with a capital C. (must’ve been entered wrong)

This message is displayed on the home page like so.

If anyone knows the culprit of this that would be much appreciated.