I had to delete all my files of web site for some reasons.
Then I've restored the files back to host.
But the problem is that;
Firstly, I uploaded all the images (about 4000) to upload folder via FTP. Then I realised that images are not showing up in media library. Than I used some plugins such as, Add from Server, Media Tools, but they coludnt operate all the files. I dont know why.
Then I deleted all the files again and uploaded via Wordpress Library -> Add new. After uploading all images they showed up in media library BUT they are not attached to "Uploaded to this post" of posts.
If anyone knows the solution, could you please help me about this.