Cells in a <table> element that use the [headers] attribute refer to an element id not found within the same table
Webflow does not offer tables.
If you get this error, check Custom Code or Element Settings > Custom Attributes.
Google Lighthouse says
Screen readers and other assistive technologies announce table headers when they come to each table data cell. If the headers and data cells don't match up, it's very confusing. Every table data cell must relate to the correct table header; therefore, there should only be one table header per column.