CSS inline load an image that does not exist

Hi,
Did you find a solution to correct the following bug please?
Some pages contain CSS inline on elements that attempt to load an image that does not exist.

Unused CSS in source code :
style=”text-align:left;background-color:transparent;background-image:url(‘undefined’);background-position:top center;background-size:auto;background-attachment:unset;border-style:none;border-width:1px;border-radius:undefinedpx”

This increases SEO 404 errors because the images are non-existent.

Thank you in advance for your answer,
Best regards

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