Access Denied on sync

Log report

[PHP] Error: Error: fread(): read of 8192 bytes failed with errno=21 Is a directory at /snap/nextcloud/23743/htdocs/lib/private/Files/Storage/Wrapper/Encryption.php#862 at <<closure>>

 

0. <<closure>>

    OC\Log\ErrorHandler::onError(8, "fread(): read o ... y", "/snap/nextcloud ... p", 862, {path: "files/BF ... l})

1. /snap/nextcloud/23743/htdocs/lib/private/Files/Storage/Wrapper/Encryption.php line 862

    fread(null, 8192)

2. /snap/nextcloud/23743/htdocs/lib/private/Files/Storage/Wrapper/Encryption.php line 930

    OC\Files\Storage\Wrapper\Encryption->readFirstBlock("files/BFCdocs_D ... s")

3. /snap/nextcloud/23743/htdocs/lib/private/Files/Storage/Wrapper/Encryption.php line 961

    OC\Files\Storage\Wrapper\Encryption->getHeader("files/BFCdocs_D ... s")

4. /snap/nextcloud/23743/htdocs/lib/private/Files/Storage/Wrapper/Encryption.php line 294

    OC\Files\Storage\Wrapper\Encryption->getEncryptionModule("files/BFCdocs_D ... s")

5. /snap/nextcloud/23743/htdocs/lib/private/Files/Storage/Wrapper/Wrapper.php line 278

    OC\Files\Storage\Wrapper\Encryption->rename("files/BFCdocs_D ... e", "files/BFCdocs_D ... s")

6. /snap/nextcloud/23743/htdocs/lib/private/Files/View.php line 816

    OC\Files\Storage\Wrapper\Wrapper->rename("files/BFCdocs_D ... e", "files/BFCdocs_D ... s")

7. /snap/nextcloud/23743/htdocs/apps/dav/lib/Connector/Sabre/Node.php line 142

    OC\Files\View->rename("/BFCdocs_DBase/Vestry Cottage/Guarantee", "/BFCdocs_DBase/ ... s")

8. /snap/nextcloud/23743/htdocs/3rdparty/sabre/dav/lib/DAV/Tree.php line 157

    OCA\DAV\Connector\Sabre\Node->setName("Guarantees")

9. /snap/nextcloud/23743/htdocs/3rdparty/sabre/dav/lib/DAV/CorePlugin.php line 641

    Sabre\DAV\Tree->move("files/Stephen G ... e", "files/Stephen G ... s")

10. /snap/nextcloud/23743/htdocs/3rdparty/sabre/event/lib/WildcardEmitterTrait.php line 89

    Sabre\DAV\CorePlugin->httpMove(Sabre\HTTP\Request {}, Sabre\HTTP\Response {})

11. /snap/nextcloud/23743/htdocs/3rdparty/sabre/dav/lib/DAV/Server.php line 474

    Sabre\DAV\Server->emit("method:MOVE", [Sabre\HTTP\Requ ... }])

12. /snap/nextcloud/23743/htdocs/3rdparty/sabre/dav/lib/DAV/Server.php line 251

    Sabre\DAV\Server->invokeMethod(Sabre\HTTP\Request {}, Sabre\HTTP\Response {})

13. /snap/nextcloud/23743/htdocs/3rdparty/sabre/dav/lib/DAV/Server.php line 319

    Sabre\DAV\Server->start()

14. /snap/nextcloud/23743/htdocs/apps/dav/lib/Server.php line 320

    Sabre\DAV\Server->exec()

15. /snap/nextcloud/23743/htdocs/apps/dav/appinfo/v2/remote.php line 35

    OCA\DAV\Server->exec()

16. /snap/nextcloud/23743/htdocs/remote.php line 167

    require_once("/snap/nextcloud ... p")

Nextcloud version (eg, 18.0.2): 19.0.4
Operating system and version (eg, Ubuntu 20.04): ubuntu 20.04
Apache or nginx version (eg, Apache 2.4.25): 2.4
PHP version (eg, 7.1): 7.3

Using snap version of nextcloud

The issue you are facing:
Getting access denied in sync client, this had been running fine. But started with this error today. The above log report is appearing several times.