Fatal error… …setToken()… …on line 299

Hello,
I’m French and I do not speak English.
I use google translation.

After upload a file, I still have this error message:

Fatal error: Call to a member function setToken() on a non-object in /homepages/12/d391280135/htdocs/jmefaispaschier/wp-content/plugins/simple-dropbox-upload-form/wp-dropbox.php on line 299

the famous line:
$oauth->setToken($wpsdb_token,$wpsdb_token_secret);

It’s frustrating!

For more information:

-The error occurs when sending any file type
-The error occurs for any file size
-I said authorized extensions in the control panel
-I have not changed anything about the plugin files
-My hosting is 1&1
-My control panel config: http://img4.hostingpics.net/pics/286075Dropboxpanel.jpg
-If I display upload progress indicators, redirection to the selected page is done, but no file is received on my dropbox. I guess the same error occurs, but being redirected to another page, we see no error

I do not speak English, thank you for being the most teacher as possible so that I can understand using Google translation (no abbreviations…).

Thanks!

http://wordpress.org/plugins/simple-dropbox-upload-form/

[No bumping. If it’s that urgent, consider hiring someone.]