Data migration from 1.9.2.3 to 2.3.4 : Fatal error How to solve this issue?

PHP
1

After migration from 1.9.2.3 to 2.3.4 : Fatal error: Uncaught TypeError: Argument 3 passed to Magento\Framework\View\Element\UiComponentFactory::mergeMetadataElement() must be of the type array, null given. How to solve this issue?

Code path : lib/internal/Magento/Framework/View/Element/ UiComponentFactory .php Function : mergeMetadataElement
Code :

protected function mergeMetadataElement(array $bundleComponents, $name, array $data, $reverseMerge = false)
    {
        if (isset($bundleComponents[$name])) {
            $bundleComponents[$name] = $reverseMerge
                ? array_replace_recursive($data, $bundleComponents[$name])
                : array_replace_recursive($bundleComponents[$name], $data);
            return [$bundleComponents, true];
        } else {
            foreach ($bundleComponents as &$childData) {
                if (isset($childData['attributes']['class'])
                    && is_a($childData['attributes']['class'], \Magento\Ui\Component\Container::class, true)
                    && isset($childData['children']) && is_array($childData['children'])
                ) {
                    list($childData['children'], $isMerged) = $this->mergeMetadataElement(
                        $childData['children'],
                        $name,
                        $data,
                        $reverseMerge
                    );
                    if ($isMerged) {
                        return [$bundleComponents, true];
                    }
                }
            }
        }
        return [$bundleComponents, false];
    }
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