Images not displaying on site or media library

Thanks to @Kaperto, I found a .htaccess file in uploads folder and deleted that. Fortunately after that most of my images were back and the site started to work again.
The loss of my data was less than 10 images, so I uploaded them again. Everything’s fine now.
Still don’t know how the problem happened at the first place (mysterious .htaccess file in uploads folder)

Related Posts:

  1. Extend Media Library
  2. WordPress 3.5: Setting custom “full URL path to files” in the Media Library?
  3. How to show all available images in WP’s media library when using the Polylang plugin?
  4. Which filters or actions to use after a media upload and delete?
  5. Protecting direct access to PDF and ZIP unless user logged in (without plugin)
  6. How to wp_upload_bits() to a sub-folder?
  7. “Add Media” only shows “Full Size” under Attachment Display Settings
  8. Where do the favicons for Media Files come from
  9. Is it possible to trigger some JavaScript when Media Popup is opened?
  10. How to call WP3.5 Media Library manager?
  11. Password protect some uploaded files, so only logged-in users can view them
  12. How to protect uploads in multisite if user is not logged in?
  13. Append button to WordPress Image Details modal
  14. WP3.5 Media Uploader – how to make it accept multiple images?
  15. How to disable WordPress Media resize different size version?
  16. Media library storing files in uploads not folders within in uploads
  17. Add select field to media uploader that adds a class to the image
  18. How to host different file formats/types for a media attachment without creating multiple attachments?
  19. Site icons with alpha channel for self-hosted WordPress blog network
  20. How do I get allowed Media Library upload file extension list?
  21. Cannot upload .mp3 file to wordpress media
  22. Switch between tabs on “Insert Media” dialog
  23. Restrict WordPress Media Library for a specific user role (users can only see/select own media)
  24. Display attachments by the ID of the post being edited in the wp.media frame (frontend)
  25. move_uploaded_file() not working on wordpress front end
  26. WordPress Issue : The uploaded file could not be moved to wp-content/uploads/
  27. Convert (-) and (escape) signs to (_) when uploading files on wordpress media library automatically
  28. Using wp_enqueue_media() with switch_to_blog() issue
  29. How to get the return value of wp.media({ frame: ‘post’ }) in all cases?
  30. Media library only shows for admin. Doesn’t show editor or below [closed]
  31. upload_max_filesize is set to 64 MB already but WordPress is still showing 2 MB
  32. PHP error when trying to upload .mp3 files via Media Library [closed]
  33. A link (not in the post) to download a specific PDF file
  34. Migrating media files (documents only) to a fresh install and maintaining the same directory structure
  35. How does wordpress handle media files?
  36. WordPress media upload issue could not insert attachment into the database
  37. Thumbnail images missing in WP media library
  38. Open Media Uploader Link in single post or page
  39. Remove Media File Items From Server That Do Not Exist in Media Library
  40. Add SWF file to wordpress through custom template
  41. What if I have a large file on the server that I want the wp library to have?
  42. Uploaded images result in a file url with full path on disk appended
  43. Using WP-CLI “wp media import” to sync files to the media library
  44. Efficient way to move media folder to another folder
  45. Make inline uploader (plupload) on options page upload to a specific folder
  46. Replicate Media Galley Edit view in Add Media View
  47. Front-End Upload media with category
  48. How to manually set an attachment in a post?
  49. Media Library: Remove replace images of selected author
  50. Adding attachment custom field metadata to TinyMCE tag
  51. How to upload multiple images using WP rest API to media?
  52. Media not displaying other users uploads – WordPress 4.9.2
  53. Organizing the Media Library for Cleanup
  54. Issues with WordPress 3.9.6 media libraries on XAMPP
  55. Insert media while posting is not working with new wordpress update
  56. controlling whether upload is attached to post or not
  57. How to split my uploaded media into directories?
  58. wordpress 3.6 media manager cropping timestamp
  59. Image in binary in the data to WordPress media library
  60. How to Protect Uploads, if User is not Logged In?
  61. what happens to existing media files when I switch to year/month directory structure format?
  62. Media upload finished hook
  63. How can I batch delete all unattached images with WP-CLI or other automated process?
  64. Image upload callback in new 3.5 media
  65. Differentiate Featured Image from Post Images upon Upload
  66. What might cause a POST to wp-admin/async-upload.php to return JSON >and< HTML?
  67. There’s a way to scale media (images) at 50%?
  68. Media Uploader: get deleted files
  69. How to get the image url in the input box from media library?
  70. Post Specific Uploader
  71. Media upload via backend doen’t work after moving site
  72. How to import 55k images (uploaded via FTP) into WordPress Media libary? [closed]
  73. Allow only attachment uploaded to current post
  74. Use the WP media uploader dialog for uploading a form attachment (non-admin). Offering progress and drag and drop feedback
  75. Cannot upload anything via wordpress
  76. Use custom image size in admin panel
  77. making media URL secured
  78. WordPress media uploader – upload tabs not hiding
  79. Is it safe to allow non-admin users access to media uploader
  80. Too slow Image upload in WordPress Media Library as image number increases
  81. How to upload media to specific year/month folder
  82. Get images attached to a specific page
  83. Flat media folder vs multiple directories
  84. Can you limit the size of media files being uploaded not using php.ini?
  85. Send media uploads to different directories
  86. How to limit sizes for specific upload programmatically?
  87. Hide media library images from other roles uploaded by admin
  88. MIME type not supporting HEIC support type in WordPress
  89. Handle image file and save it to media
  90. Sanitizing existing media library paths and page links from foreign characters
  91. Set default “Link CSS Class” in add media admin editor
  92. How could you allow users to upload a video in within their profile and display it on a wordpress site?
  93. How to share media between independent blogs?
  94. WP Capabilities to Add Media, Use Media, But Not Edit Them
  95. Limit attachment caption characters
  96. Media Gallery doesn’t show (using WP-Read Only)
  97. Problem uploading files, after changing domain name
  98. Unable to upload images using the Media Library
  99. How do I restore attachment from files in wp-upload
  100. What is the proper use of guid for images in wp_posts?