Hello, I updated limesurvey to the last version ( 250plus-build160606) manually from 2.06+ 160129
but when I try to enter to the admin page this error apears

Fatal error: Call to undefined method LSBootstrap::init() in /opt/lampp/htdocs/limesurvey/framework/base/CModule.php on line 394

What could be the problem?


Edit:
problem solved, some files wasn't unzipped correctly