I have to be constantly deleting the cache of my website (see attached), because:
The button to share an article on Facebook stops working after 6 to 7 times I use it, but this only happens in the post in which I used it, the others remain ok until I use it also 6 to 7 times. I have the sumo plugin installed. When I clear the cache, it works again.
Please try disabling any third party plugins that were not bundled with the theme as one of them may be causing a conflict with the social media icons.
You can also try using this plugin to clear your WordPress cache instead of the Hostinger plugin,
This can be related to a plugin that had previously installed, it is called AddToAny. Is it possible that something was left in the code that is causing incompatibility?
If you’re using a cache plugin then the page if of course cached, so does the social sharing status, it will change only after a few hours once when the cache plugin re-create the cache. I suggest you to try some other social sharing plugin that supports cache or a cache plugin that allows the social share not to be cached.