Thread:Project:Support desk/Upgade problem 1.16 to 1.19

I tried earlier upgrade to 1.19 and server php was too low. So i Had to change files back to normal. Now with new server i managed to do upgrade without errors. Only problems are: Version number is still 1.16.2? Edit don´t work: Internal error Detected bug in an extension! Hook alternateEdit failed to return a value; should return true to continue hook processing or false to abort. Backtrace:
 * 1) 0 /var/www/customers/ohjelmapartio/public_html/includes/EditPage.php(288): wfRunHooks('AlternateEdit', Array)
 * 2) 1 /var/www/customers/ohjelmapartio/public_html/includes/EditPage.php(271): EditPage->edit
 * 3) 2 /var/www/customers/ohjelmapartio/public_html/includes/Wiki.php(553): EditPage->submit
 * 4) 3 /var/www/customers/ohjelmapartio/public_html/includes/Wiki.php(70): MediaWiki->performAction(Object(OutputPage), Object(Article), Object(Title), Object(User), Object(WebRequest))
 * 5) 4 /var/www/customers/ohjelmapartio/public_html/index.php(117): MediaWiki->performRequestForTitle(Object(Title), Object(Article), Object(OutputPage), Object(User), Object(WebRequest))
 * 6) 5 {main}

Any helps, please?