aria-hidden="true" must not be present on the document body
Moderatearia-hidden-body
What it checks
Ensure aria-hidden="true" is not present on the document body.
How to fix it
Review and fix this accessibility issue following WCAG guidelines
WCAG
Success criteria 1.3.1, 4.1.2. See the WCAG 2.2 quick reference.
More detail: Deque University's page on this rule.