Liecened Problem.

You seem to have a problem with tzhe English language. It may be easier for you, to ask your question in your language.

If I correctly understand your question, you have licensed and are using assets that are no more available in Adobe stock. You are still allowed to use them according to the licensing terms, as the licence granted is perpetual.

But some very mean people, having given up Adobe stock, are now trying to extract additional money from users, by claiming that correctly licenced assets are not used legally. Send them a screencopy of your license history of that particular asset. That should solve the issue.

Your standard license for a particular asset allows you to use that image for a single client or project. If you want to use that same asset for a different use, you must license it a second time. However, if the Contributor has closed their Adobe Stock account, or has removed that asset from their portfolio, it is no longer available for download. It is always recommended that you download all of the assets you've licensed and store them locally. Even if the asset is no longer available for download from Adobe Stock you still retain a perpetual license to use that asset for the client/project for which you originally licensed it.

I'm not sure what you mean by "so someone claims it's my image". It's not "your image", since you don't hold the copyright, but you should have proof that you licensed it from Adobe for perpetual use.