Warning: Incorrect usage of related-filter or function

The related-filter or function can only be applied to a single Record.

• RelatedExtension->checkforContent()
• RelatedExtension->getRelatedContent() - line 116
• __TwigTemplate_66df1d01…->{closure}() - line 62
• LockRegistry::compute() - line 113
• TagAwareAdapter->Symfony\Component\Cache\Traits\{closure}() - line 98