Call to a member function addIndexPoint() on boolean at vendor/grandt/phpepub/src/PHPePub/Core/EPub.php:383

[bugoverfl0w]

Hello team,

I got this error, how can I fix it :(?

when I check in line 383,
381: $ids = $this->findIdAttributes($chapterData);
382: foreach ($ids as $id) {
383: $item->addIndexPoint($id);
}

When i try dump $ids, normal got empty $ids, error show $ids has one element with string as value

Can you check it?

Thanks,