Problem - extensions are updating to new versions only after a couple of days (2-3)
Which extensions? What is your OS? Which version of the extension do you have installed and which version should it be updating to?
If there are several Opera servers for keeping extensions and some of servers can be working with issues so some extensions are updating with delay, okay, then extension url - https://addons.opera.com/extensions/details/potplayer-youtube-shortcut/
Version of Windows, 10, 8 or 7, also installed/new version of extension - I don't think that it's really useful information)
Windows 10. It's not user's problem.