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[ZgWAgcnzQF1ykaYc--krTQAAAEI] /bbpedia/index.php?title=Toiminnot:Uudet_tiedostot&offset=&limit=500 TypeError: imagesx(): Argument #1 ($image) must be of type GdImage, bool given

Backtrace:

from /var/www/html/bbpedia/includes/media/BitmapHandler.php(504)
#0 /var/www/html/bbpedia/includes/media/BitmapHandler.php(504): imagesx()
#1 /var/www/html/bbpedia/includes/media/TransformationalImageHandler.php(263): BitmapHandler->transformGd()
#2 /var/www/html/bbpedia/includes/filerepo/file/File.php(1317): TransformationalImageHandler->doTransform()
#3 /var/www/html/bbpedia/includes/filerepo/file/File.php(1264): File->generateAndSaveThumb()
#4 /var/www/html/bbpedia/includes/gallery/TraditionalImageGallery.php(110): File->transform()
#5 /var/www/html/bbpedia/includes/specials/pagers/NewFilesPager.php(176): TraditionalImageGallery->toHTML()
#6 /var/www/html/bbpedia/includes/pager/IndexPager.php(642): NewFilesPager->getEndBody()
#7 /var/www/html/bbpedia/includes/specials/SpecialNewFiles.php(137): IndexPager->getBody()
#8 /var/www/html/bbpedia/includes/specialpage/SpecialPage.php(701): SpecialNewFiles->execute()
#9 /var/www/html/bbpedia/includes/specialpage/SpecialPageFactory.php(1428): SpecialPage->run()
#10 /var/www/html/bbpedia/includes/MediaWiki.php(316): MediaWiki\SpecialPage\SpecialPageFactory->executePath()
#11 /var/www/html/bbpedia/includes/MediaWiki.php(904): MediaWiki->performRequest()
#12 /var/www/html/bbpedia/includes/MediaWiki.php(562): MediaWiki->main()
#13 /var/www/html/bbpedia/index.php(50): MediaWiki->run()
#14 /var/www/html/bbpedia/index.php(46): wfIndexMain()
#15 {main}