[{reqId}] {exception_url}   UploadStashFileNotFoundException: La chiave "<filename>.gif" non è stata trovata nello stash

from /srv/mediawiki/php-1.39.0-wmf.12/includes/upload/UploadStash.php(133)
#0 /srv/mediawiki/php-1.39.0-wmf.12/includes/upload/UploadStash.php(175): UploadStash->getFile(string)
#1 /srv/mediawiki/php-1.39.0-wmf.12/includes/upload/UploadFromStash.php(102): UploadStash->getMetadata(string)
#2 /srv/mediawiki/php-1.39.0-wmf.12/includes/upload/UploadFromStash.php(129): UploadFromStash->initialize(string, string)
#3 /srv/mediawiki/php-1.39.0-wmf.12/includes/upload/UploadBase.php(226): UploadFromStash->initializeFromRequest(WebRequest)
#4 /srv/mediawiki/php-1.39.0-wmf.12/includes/specials/SpecialUpload.php(128): UploadBase::createFromRequest(WebRequest)
#5 /srv/mediawiki/php-1.39.0-wmf.12/includes/specials/SpecialUpload.php(233): SpecialUpload->loadRequest()
#6 /srv/mediawiki/php-1.39.0-wmf.12/includes/specialpage/SpecialPage.php(688): SpecialUpload->execute(NULL)
#7 /srv/mediawiki/php-1.39.0-wmf.12/includes/specialpage/SpecialPageFactory.php(1415): SpecialPage->run(NULL)
#8 /srv/mediawiki/php-1.39.0-wmf.12/includes/MediaWiki.php(316): MediaWiki\SpecialPage\SpecialPageFactory->executePath(string, RequestContext)
#9 /srv/mediawiki/php-1.39.0-wmf.12/includes/MediaWiki.php(912): MediaWiki->performRequest()
#10 /srv/mediawiki/php-1.39.0-wmf.12/includes/MediaWiki.php(566): MediaWiki->main()
#11 /srv/mediawiki/php-1.39.0-wmf.12/index.php(50): MediaWiki->run()
#12 /srv/mediawiki/php-1.39.0-wmf.12/index.php(46): wfIndexMain()
#13 /srv/mediawiki/w/index.php(3): require(string)
#14 {main}