Title: Thumbnail Generation Alert
Last modified: May 30, 2020

---

# Thumbnail Generation Alert

 *  Resolved [micwp123](https://wordpress.org/support/users/micwp123/)
 * (@micwp123)
 * [5 years, 11 months ago](https://wordpress.org/support/topic/thumbnail-generation-alert-4/)
 * Hi,
 * since yesterday I get the following error message:
    Vorschaubild-Erzeugungstest
   fehlgeschlagen!object(WP_Error)#19913 (2) { [“errors”]=> array(1) { [“invalid_image”]
   => array(1) { [0]=> string(20) “Datei ist kein Bild.” } } [“error_data”]=> array(
   1) { [“invalid_image”]=> string(40) “[https://s3.amazonaws.com/foocdn/test.jpg&#8221](https://s3.amazonaws.com/foocdn/test.jpg&#8221);}}
   array(2) { [“ext”]=> string(3) “jpg” [“type”]=> string(10) “image/jpeg” }
 * I did the Thumbnail Generation Test and enabled the Override Thumb Test.
 * FooBox Image Lightbox is version 2.7.8, FooGallery is version 1.9.24.
 * Any suggestions?
 * Thanks,
    mic
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fthumbnail-generation-alert-4%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [phillcoxon](https://wordpress.org/support/users/phillcoxon/)
 * (@phillcoxon)
 * [5 years, 11 months ago](https://wordpress.org/support/topic/thumbnail-generation-alert-4/#post-12929294)
 * Hi [@micwp123](https://wordpress.org/support/users/micwp123/),
 * If you’re happy to do so, would you please reply back with the contents of FooGallery-
   > System Info so we can look into this further for you?
 *  Thread Starter [micwp123](https://wordpress.org/support/users/micwp123/)
 * (@micwp123)
 * [5 years, 11 months ago](https://wordpress.org/support/topic/thumbnail-generation-alert-4/#post-12931135)
 * Hi,
 * here is the System Info:
    FooGallery-Version : 1.9.24 WordPress-Version : 5.4.1
   Aktiviertes Theme : OceanWP Child 02 WordPress-URL : [https://www.berliner-forum-religionen.de](https://www.berliner-forum-religionen.de)
   PHP-Version : 7.2.19 PHP GD : Geladen (V2) PHP Imagick : Nichts gefunden! PHP
   Open SSL : Geladen PHP HTTP Wrapper : Gefunden PHP HTTPS Wrapper : Gefunden HTTPS
   Mismatch : Es besteht eine Protokoll-Diskrepanz zwischen deiner Website-URL und
   der tatsächlichen URL! PHP Config[allow_url_fopen] : PHP Config[allow_url_include]:
   WP Image Editor : WP_Thumb_Image_Editor_GD Vorschaubild-Erzeugungstest : [http://interreligioeser-stadtplan.de/wp-content/uploads/2016/09/logo.png](http://interreligioeser-stadtplan.de/wp-content/uploads/2016/09/logo.png)
   Erweiterungs-Endpunkt : [https://raw.githubusercontent.com/fooplugins/foogallery-extensions/master/extensions.json?v=1BoEZsJ3Y&Ce](https://raw.githubusercontent.com/fooplugins/foogallery-extensions/master/extensions.json?v=1BoEZsJ3Y&Ce)
   Erweiterungsfehler : Nein, alles gut Erweiterungen : Aktive Erweiterungen : Array([
   0] => default_templates [1] => foobox [2] => foobox-image-lightbox )
 * Galerie-Vorlagen : Array
    ( [0] => default [1] => image-viewer [2] => justified[
   3] => masonry [4] => simple_portfolio [5] => thumbnail [6] => polaroid_promo [
   7] => grid_promo [8] => slider_promo )
 * Lightboxes : Array
    ( [foogallery] => FooGallery PRO Lightbox [foobox] => FooBox)
 * Einstellungen : Array
    ( [gallery_template] => default [gallery_sorting] => [
   default_gallery_settings] => 0 [caption_title_source] => caption [caption_desc_source]
   => desc [thumb_jpeg_quality] => 100 [default_crop_position] => center,center [
   default_retina_support|2x] => on [thumb_resize_upscale_small_color] => rgb(0,0,0)[
   language_images_count_none_text] => Keine Bilder [language_images_count_single_text]
   => 1 Bild [language_images_count_plural_text] => %s Bilder [default_retina_support]
   => Array ( [2x] => true [3x] => false [4x] => false )
 * )
 * Aktive Plugins : Array
    ( [0] => ocean-extra/ocean-extra.php [1] => backwpup/
   backwpup.php [2] => child-theme-configurator/child-theme-configurator.php [3]
   => classic-editor/classic-editor.php [4] => contact-form-7-honeypot/honeypot.
   php [5] => contact-form-7-image-captcha/cf7-image-captcha.php [6] => contact-
   form-7/wp-contact-form-7.php [7] => cookie-notice/cookie-notice.php [8] => elementor/
   elementor.php [9] => email-address-encoder/email-address-encoder.php [10] => 
   event-organiser/event-organiser.php [11] => ewww-image-optimizer/ewww-image-optimizer.
   php [12] => foobox-image-lightbox/foobox-free.php [13] => foogallery/foogallery.
   php [14] => mailpoet/mailpoet.php [15] => ml-slider/ml-slider.php [16] => modula-
   best-grid-gallery/Modula.php [17] => photo-gallery/photo-gallery.php [18] => 
   really-simple-ssl/rlrsssl-really-simple-ssl.php [19] => regenerate-thumbnails/
   regenerate-thumbnails.php [20] => statify/statify.php [21] => strong-testimonials/
   strong-testimonials.php [22] => tablepress/tablepress.php [23] => ultimate-category-
   excluder/ultimate-category-excluder.php [24] => ultimate-maps-by-supsystic/ums.
   php [25] => w3-total-cache/w3-total-cache.php [26] => wp-font-awesome/wp-font-
   awesome.php [27] => wp-typography/wp-typography.php )
 * Best regards
    mic
 *  [phillcoxon](https://wordpress.org/support/users/phillcoxon/)
 * (@phillcoxon)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/thumbnail-generation-alert-4/#post-13022286)
 * Hi [@micwp123](https://wordpress.org/support/users/micwp123/),
 * Sorry for the delay. Would you let me know if this is still an issue for you?
 * If so, would you please go to FooGallery -> Images and try enabling the “Force
   GD Library” option and let me know if that makes a difference?
 *  Plugin Author [bradvin](https://wordpress.org/support/users/bradvin/)
 * (@bradvin)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/thumbnail-generation-alert-4/#post-13046127)
 * Hi – we have not heard back from you in a while, so we are closing this thread.
 * If you are still having issues, we can open the thread again.
 * thanks

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Thumbnail Generation Alert’ is closed to new replies.

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## Tags

 * [alert](https://wordpress.org/support/topic-tag/alert/)
 * [thumbnail](https://wordpress.org/support/topic-tag/thumbnail/)

 * 4 replies
 * 3 participants
 * Last reply from: [bradvin](https://wordpress.org/support/users/bradvin/)
 * Last activity: [5 years, 10 months ago](https://wordpress.org/support/topic/thumbnail-generation-alert-4/#post-13046127)
 * Status: resolved