YOU ARE MY GOD! Client module was disabled :D Now everything works fine.
It tells: Go to your ISPconfig panel and add a new remote user. (Tab "servers" > "Remote users") Tick Client functions Server functions Mail...
But I have also tried this: UPDATE `remote_user` SET `remote_functions` =...
Hi, I'am working on it too. I have added $config['plugins'] = array("jqueryui", "ispconfig3_account", "ispconfig3_autoreply", "ispconfig3_pass",...
Separate names with a comma.