Hello,
Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.
I’ve checked the URL you have provided using Facebook Debugger Tool, and it seems that the description is already set without the errors.

Could you please also share where are you getting this error?
I hope that helps. Thank you, and looking forward to your update.
The error is the same description for each shared publication:
og:description Informacje z naszego regionu
Look at the picture:

Hello,
Thank you for that additional information.
I’ve checked the post you have provided, and it seems that the og:description and other meta tags are being duplicated, that’s why Facebook is showing incorrect data for your meta description. Please see this screencast for your reference:
https://i.rankmath.com/nvl9Ze
To determine if one of your plugins or theme is causing this, please follow this troubleshooting guide:
https://rankmath.com/kb/check-plugin-conflicts/
Only the site admin would know and your users won’t be affected by this troubleshooting.
Let us know if you found the culprit.
I hope that helps. Thank you, and looking forward to your update.
Thank you for your help!
This theme is the problem: https://themeforest.net/item/15zine-hd-magazine-newspaper-wordpress-theme/10802918?_ga=2.181557409.783110874.1615362179-942920585.1610209505
I will write to the author and let him solve the problem.
You’re doing a great job! The plug is really cool – the best on the market! Thank you!
Greetings from Poland
Marcin Nawrot
Hello,
Thanks for your kind words. We are glad that you have found the culprit.
Let us know if you need any further assistance.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.