Hello @prusa
I’m not certain how you received that message. To my knowledge, we have never had a Twitter widget in our product, so the error is unclear.
That said, we can investigate this for you. Please create a snapshot of your website using this plugin: https://ww.wp.xz.cn/plugins/all-in-one-wp-migration/ and send the file via Google Drive through our website: https://creativethemes.com/blocksy/account/. Our engineers will review it and get back to you with their findings.
Thanks,
Eduard