UploadStashBadPathException from line 155 of /var/www/html/w/includes/upload/UploadStash.php: path doesn't exist

문제상황

[e48c1a4e] /wiki/%ED%8A%B9%EC%88%98:%EC%98%AC%EB%A6%AC%EA%B8%B0 UploadStashBadPathException from line 155 of /var/www/html/w/includes/upload/UploadStash.php: path doesn't exist

Backtrace:

#0 /var/www/html/w/includes/upload/UploadStash.php(313): UploadStash->getFile(string)
#1 /var/www/html/w/includes/upload/UploadBase.php(922): UploadStash->stashFile(string, string)
#2 /var/www/html/w/includes/upload/UploadBase.php(935): UploadBase->stashFile()
#3 /var/www/html/w/includes/upload/UploadBase.php(944): UploadBase->stashFileGetKey()
#4 /var/www/html/w/includes/specials/SpecialUpload.php(357): UploadBase->stashSession()
#5 /var/www/html/w/includes/specials/SpecialUpload.php(458): SpecialUpload->showUploadWarning(array)
#6 /var/www/html/w/includes/specials/SpecialUpload.php(195): SpecialUpload->processUpload()
#7 /var/www/html/w/includes/specialpage/SpecialPage.php(384): SpecialUpload->execute(NULL)
#8 /var/www/html/w/includes/specialpage/SpecialPageFactory.php(582): SpecialPage->run(NULL)
#9 /var/www/html/w/includes/MediaWiki.php(267): SpecialPageFactory::executePath(Title, RequestContext)
#10 /var/www/html/w/includes/MediaWiki.php(566): MediaWiki->performRequest()
#11 /var/www/html/w/includes/MediaWiki.php(414): MediaWiki->main()
#12 /var/www/html/w/index.php(41): MediaWiki->run()
#13 {main}