ValidationError: The following field is invalid

const Surah: CollectionConfig = {
    slug: "surah",
    admin: {
        useAsTitle: "name",
        defaultColumns: [
            "name",
            "id",
            'variations',
            "publishDate",
            'status'
        ],
        group: "Content"
    },
    access: {
        read: ({ req: { user } }) => { 
            if (user) {
                return true;
            }

            return {
                and: [
                    {
                        publishDate: {
                            less_than: new Date().toJSON(),
                        },
                        _status: {
                            equals: 'published',
                        },
                    },
                ],
            };
        }
    },
    versions: {
        drafts: true,
    },
    fields: [
        {
            name: "name",
            type: "text",
            localized: true,
        },
{
            name: 'quranPage',
            type: 'relationship',
            relationTo: 'quranPage'
            required: true,
            hasMany: true,
            admin: {
                position: 'sidebar',
            },
        },
    ]
}
export default Surah;

const QuranPage: CollectionConfig = {
    slug: 'quranPage',
    admin: {
        useAsTitle: 'name',
        defaultColumns: ['name', 'id', 'archived'],
        group: 'Content',
    },
    access: {
        read: () => true,
    },
    fields: [
        {
            name: 'name',
            type: 'text',
            localized: true,
        },
        {
            name: 'summary',
            type: 'ui',
            admin: {
                position: 'sidebar',
                components: {
                    Field: QuranPageSummary,
                }
            }
        }
    ],
}

export default QuranPage;