Premiere Pro "Filter Offline" message

Im totally aware that this post was solved and it was posted 5 years ago, but the reason Im here it´s because I had the same problem and this one was the only post available in the whole internet talkinb about this issue, tried everything but the issue was not solved, so I investigated more and I finally solved.
If you are still with this issue and everything posted in here is now working try this:
Go to "effect controls" tab, the one on the top left where you modify scale, rotation, etc, in the tab right after "effect controls" you will see an icon with 3 lines, click on it, then "manage video effects", a pop up will open with all effects listed, you will see the effect that is offline there unchecked, you have to mark as checked again and that´s it.
This happened to me after an effect crashed my project, I reopened it and a popup asked me if I wanted to open the project without the effect making trouble, I clicked "yes" and after that the effect appeard as (offline), this works only if the same happens to you, sometimes the effect is obsolete cause the plugin has an update or because it´s no longer available, discontinued or replaced by a new version of it, this is not the case, this is only for available working effects that are offline.
Hope it helps.