I write you here because I am desperate. For a few weeks, the twitter cards of my website are not working properly. These work intermittently, sometimes they work and sometimes they do not. Even the same URL sometimes works and another does not. I have reviewed all the troubleshooting steps but I do not find the problem.
In Card Validator, I have this message: ERROR: Fetching the page failed because the fetcher cannot resolve the address. But, sometimes is this: INFO: Page fetched successfully
WARN: No metatags found
Please, could you help me? Thank you!!!
My url is: https://microcuento.es/