Bad Signature on upload

Hi All, 

i've a problem from a lot of weeks, randomly some user start to can't use/upload new file to the server. The client says "Bad Signature" In the server side i can see the complete log:

[webdav] Fatal: OCP\Encryption\Exceptions\GenericEncryptionException: Bad Signature at <<closure

 0. /snap/nextcloud/28473/htdocs/apps/encryption/lib/Crypto/Crypt.php line 480
    OCA\Encryption\Crypto\Crypt->checkSignature("*** sensitive parameters replaced ***")
 1. /snap/nextcloud/28473/htdocs/apps/encryption/lib/Crypto/Encryption.php line 376
    OCA\Encryption\Crypto\Crypt->symmetricDecryptFileContent("*** sensitive parameters replaced ***")
 2. /snap/nextcloud/28473/htdocs/lib/private/Files/Stream/Encryption.php line 520
    OCA\Encryption\Crypto\Encryption->decrypt("*** sensitive parameters replaced ***")
 3. /snap/nextcloud/28473/htdocs/lib/private/Files/Stream/Encryption.php line 318
    OC\Files\Stream\Encryption->readCache()
 4. <<closure>>
    OC\Files\Stream\Encryption->stream_read(8192)
 5. /snap/nextcloud/28473/htdocs/3rdparty/icewind/streams/src/Wrapper.php line 55
    fread(null, 8192)
 6. /snap/nextcloud/28473/htdocs/3rdparty/icewind/streams/src/CallbackWrapper.php line 96
    Icewind\Streams\Wrapper->stream_read(8192)
 7. <<closure>>
    Icewind\Streams\CallbackWrapper->stream_read(8192)
 8. /snap/nextcloud/28473/htdocs/3rdparty/sabre/http/lib/Sapi.php line 112
    stream_copy_to_stream(null, null, 26404)
 9. /snap/nextcloud/28473/htdocs/3rdparty/sabre/dav/lib/DAV/Server.php line 490
    Sabre\HTTP\Sapi::sendResponse(Sabre\HTTP\Response {})
10. /snap/nextcloud/28473/htdocs/3rdparty/sabre/dav/lib/DAV/Server.php line 253
    Sabre\DAV\Server->invokeMethod(Sabre\HTTP\Request {}, Sabre\HTTP\Response {})
11. /snap/nextcloud/28473/htdocs/3rdparty/sabre/dav/lib/DAV/Server.php line 321
    Sabre\DAV\Server->start()
12. /snap/nextcloud/28473/htdocs/apps/dav/lib/Server.php line 332
    Sabre\DAV\Server->exec()
13. /snap/nextcloud/28473/htdocs/apps/dav/appinfo/v2/remote.php line 35
    OCA\DAV\Server->exec()
14. /snap/nextcloud/28473/htdocs/remote.php line 167
    require_once("/snap/nextcloud ... p")

Someone had the same issue? How can i resolve it?

Thanks

Hi,

no one have some tips to resolve this situation?