@ERODELETE It works fine if you install it from Chrome Extension Store.

@CAVuTI Not sure what you mean.
The LastPass Extension on this site (opera.com) is broken.
If you want LastPass Extension in your Opera browser, open Chrome Extension Store with your Opera Browser.

https://chromewebstore.google.com/detail/lastpass-free-password-ma/hdokiejnpimakedhajhdlcegeplioahd

Press the button "Add to Chrome" (or whatever it says in your language).
Opera uses the same browser engine as the Chrome Browser - so the extension is working in Opera also.

I hope it helps.

@d-jemme try install the LastPass extension from the Chrome Browser extension store

@ardilom-2 it helped me to install it from Chrome extensions. Instead of here from Opera Extensions

Not working any more. It keeps getting disabled.