# Upload error when using File Drop (upload only) on links **URL:** \ **Category:** ℹ️ Support\ **Created:** [April 21, 2021, 12:29pm UTC](https://help.nextcloud.com/t/upload-error-when-using-file-drop-upload-only-on-links/114400 "2021-04-21T12:29:17Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![ettcooltnamn](https://help.nextcloud.com/letter_avatar/ettcooltnamn/32/6_22734026db12803ebb3e059622ac3534.png) [@ettcooltnamn](https://help.nextcloud.com/u/ettcooltnamn)\ **Post date:** [April 21, 2021, 12:29pm UTC](https://help.nextcloud.com/t/upload-error-when-using-file-drop-upload-only-on-links/114400/1 "2021-04-21T12:29:17Z")
Nextcloud version: 21.0.1 Operating system: CentOS Linux release 8.3.2011 Linux 4.18.0-240.10.1.el8\_3.x86\_64 x86\_64 Webserver: Apache/2.4.37 (centos) Database: mysql 10.3.27 PHP version: 7.4.15 Hi ! I’m having issue when trying to upload in a folder, as a guest, using a “File drop (upload only)” link I get “Could not upload” error top right of the screen. **observation :** file is actually uploaded in non-groupfolders folders - but I get the error on upload Steps to replicate it: 1- create folder 2- share link \> create a “file drop (upload only)” 3- create new private tab in browser, paste the URL 4- Drop a file (or browse) → Error top right : “Could not upload “…”” The output of your Nextcloud log in **Admin \> Logging** : [PHP] Error: Error: Cannot modify header information - headers already sent by (output started at /var/www/html/nextcloud/3rdparty/sabre/http/lib/Sapi.php:132) at /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php#691 at \<\> 1. \<\> OC\Log\ErrorHandler::onError(2, “Cannot modify h … )”, “/var/www/html/n … p”, 691, {string: "X-Hash … "}) 2. /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php line 691 header(“X-Hash-MD5: d41 … e”) 3. /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php line 189 OCA\DAV\Connector\Sabre\File-\>header(“X-Hash-MD5: d41 … e”) 4. \<\> OCA\DAV\Connector\Sabre\File-\>OCA\DAV\Connector\Sabre{closure}("\*\*\* sensitive parameters replaced \*\*\*") 5. /var/www/html/nextcloud/lib/private/Files/Stream/HashWrapper.php line 71 call\_user\_func(Closure {}, “\*\*\* sensitive parameter replaced \*\*\*”) 6. \<\> OC\Files\Stream\HashWrapper-\>stream\_close() 7. /var/www/html/nextcloud/3rdparty/icewind/streams/src/Wrapper.php line 96 fclose(null) 8. /var/www/html/nextcloud/lib/private/Files/Stream/HashWrapper.php line 75 Icewind\Streams\Wrapper-\>stream\_close() 9. \<\> OC\Files\Stream\HashWrapper-\>stream\_close() 10. /var/www/html/nextcloud/3rdparty/icewind/streams/src/Wrapper.php line 96 fclose(null) 11. /var/www/html/nextcloud/lib/private/Files/Stream/HashWrapper.php line 75 Icewind\Streams\Wrapper-\>stream\_close() 12. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 321 OC\Files\Stream\HashWrapper-\>stream\_close() 13. /var/www/html/nextcloud/apps/dav/appinfo/v1/publicwebdav.php line 113 Sabre\DAV\Server-\>exec() 14. /var/www/html/nextcloud/public.php line 81 require\_once("/var/www/html/n … p") Disabling activity app as suggested in other threads does NOT work. Please advise on what else I can try ---
**Author:** ![ettcooltnamn](https://help.nextcloud.com/letter_avatar/ettcooltnamn/32/6_22734026db12803ebb3e059622ac3534.png) [@ettcooltnamn](https://help.nextcloud.com/u/ettcooltnamn)\ **Post date:** [May 3, 2021, 12:04pm UTC](https://help.nextcloud.com/t/upload-error-when-using-file-drop-upload-only-on-links/114400/2 "2021-05-03T12:04:38Z")
Resolved the issue by disabling the app called “Deleted Files” ---
**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 13, 2024, 9:22am UTC](https://help.nextcloud.com/t/upload-error-when-using-file-drop-upload-only-on-links/114400/3 "2024-12-13T09:22:35Z")
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**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 13, 2024, 9:22am UTC](https://help.nextcloud.com/t/upload-error-when-using-file-drop-upload-only-on-links/114400/4 "2024-12-13T09:22:36Z")