Hello, for now i use trial version but i don't think this is error from trial version show me this system/rconfig.inc.php has expired. in Unknown on line 0
Yes, it is from trial version - files are expired. We unforuntately have no ability to build trial version for v4, and there are no reasons to continue building v3 trials. You may try online demo : http://www.amdemo.com/ instead.