When I tried to update my website, this kind of information was generated on my Dashboard:
Installer cannot contact our updates server to get information about the available products and check for new versions. If you are seeing this message for the first time, you can ignore it, as it may be a temporary communication problem. If the problem persists and your WordPress admin is slowing down, you can disable automated version checks. Add the following line to your wp-config.php file:
I cannot update any plugin, neither can I add any of them. Also on my website the video which was previously there seems to be missing. Please assist me with resolving this issue.