ISPConfig Cron - Log

Hellow i have a little problem in ISPConfig > Monitor > Show ISPC Cron - Log i get this:

Code:

PHP Warning: call_user_func() expects parameter 1 to be a valid callback, class 'maildrop_plugin' does not have a method 'insert' in /usr/local/ispconfig/server/lib/classes/plugins.inc.php on line 120
PHP Warning: call_user_func() expects parameter 1 to be a valid callback, class 'maildrop_plugin' does not have a method 'insert' in /usr/local/ispconfig/server/lib/classes/plugins.inc.php on line 120
PHP Warning: call_user_func() expects parameter 1 to be a valid callback, class 'maildrop_plugin' does not have a method 'insert' in /usr/local/ispconfig/server/lib/classes/plugins.inc.php on line 120
PHP Warning: call_user_func() expects parameter 1 to be a valid callback, class 'maildrop_plugin' does not have a method 'insert' in /usr/local/ispconfig/server/lib/classes/plugins.inc.php on line 120
PHP Warning: call_user_func() expects parameter 1 to be a valid callback, class 'maildrop_plugin' does not have a method 'insert' in /usr/local/ispconfig/server/lib/classes/plugins.inc.php on line 120
PHP Warning: call_user_func() expects parameter 1 to be a valid callback, class 'maildrop_plugin' does not have a method 'insert' in /usr/local/ispconfig/server/lib/classes/plugins.inc.php on line 120
PHP Warning: call_user_func() expects parameter 1 to be a valid callback, class 'maildrop_plugin' does not have a method 'insert' in /usr/local/ispconfig/server/lib/classes/plugins.inc.php on line 120
PHP Warning: call_user_func() expects parameter 1 to be a valid callback, class 'maildrop_plugin' does not have a method 'insert' in /usr/local/ispconfig/server/lib/classes/plugins.inc.php on line 120
PHP Warning: call_user_func() expects parameter 1 to be a valid callback, class 'maildrop_plugin' does not have a method 'insert' in /usr/local/ispconfig/server/lib/classes/plugins.inc.php on line 120
PHP Warning: copy(/etc/apache2/sites-available/mysite1.ro.vhost): failed to open stream: No such file or directory in /usr/local/ispconfig/server/plugins-available/apache2_plugin.inc.php on line 841
PHP Warning: copy(/etc/apache2/sites-available/mysite2.ro.vhost): failed to open stream: No such file or directory in /usr/local/ispconfig/server/plugins-available/apache2_plugin.inc.php on line 841

i go there in "/usr/local/ispconfig/server/lib/classes/plugins.inc.php" at line 120 and i have this:

Code:

call_user_func(array($app->loaded_plugins[$plugin_name],$function_name),$event_name,$data);

and i go to "/usr/local/ispconfig/server/plugins-available/apache2_plugin.inc.php" to line 841:

Code:

copy($vhost_file,$vhost_file.'~');

i use: Ubuntu 11.04 x64 and install The Perfect Server – Ubuntu 11.04 [ISPConfig 3].

Someone can help me?
Thanks, have a good night.

 

i have install the last version on server ISPConfig Version: 3.0.3.3 i just installed on fresh serv 1 day ago