TypeError: ldJson["@type"]?.toLowerCase is not a function

[mirsella]

hey :)
got this error on the bun version, with this url https://www.lalibre.be/belgique/politique-belge/2024/11/04/puisque-larizona-est-en-etat-de-mort-clinique-vive-la-suedoise-HYG6W5EJ5FF6FPVGSBF557L37Y/

54 | export default (document, entry) => {
55 |   const ldSchemas = document.querySelectorAll('script[type="application/ld+json"]')
56 | 
57 |   ldSchemas.forEach(ldSchema => {
58 |     const ldJson = parseJson(ldSchema.textContent.replace(/[\n\r\t]/g, ''))
59 |     const isAllowedLdJsonType = typeSchemas.includes(ldJson['@type']?.toLowerCase())
                                                                           ^
TypeError: ldJson["@type"]?.toLowerCase is not a function. (In 'ldJson["@type"]?.toLowerCase()', 'ldJson["@type"]?.toLowerCase' is undefined)
      at /app/node_modules/@extractus/article-extractor/src/utils/extractLdSchema.js:59:71
      at forEach (1:11)
      at starDefault (/app/node_modules/@extractus/article-extractor/src/utils/extractLdSchema.js:57:13)
      at starDefault (/app/node_modules/@extractus/article-extractor/src/utils/extractMetaData.js:146:19)
      at /app/node_modules/@extractus/article-extractor/src/utils/parseFromHtml.js:34:16
      at starDefault (/app/node_modules/@extractus/article-extractor/src/utils/parseFromHtml.js:32:23)
      at extractFromHtml (/app/node_modules/@extractus/article-extractor/src/main.js:31:39)
      at /app/index.ts:39:24