Thx Ciencia for the tip. Here is the end of the logs:
SQL ERROR: Unknown column 'page_links_updated' in 'field list' (localhost)
[Bug56269] Exception thrown with an uncommited database transaction: [d16603c55a86c86fa232084c] /mediawiki/index.php DBQueryError from line 934 of /Applications/MAMP/htdocs/mediawiki/includes/db/Database.php: A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT page_id,page_namespace,page_title,page_restrictions,page_is_redirect,page_is_new,page_random,page_touched,page_links_updated,page_latest,page_len,page_content_model FROM `page` WHERE page_namespace = '4' AND page_title = 'Main_Page' LIMIT 1
Function: WikiPage::pageData
Error: 1054 Unknown column 'page_links_updated' in 'field list' (localhost)
#0 /Applications/MAMP/htdocs/mediawiki/includes/db/Database.php(901): DatabaseBase->reportQueryError(string, integer, string, string, boolean)
#1 /Applications/MAMP/htdocs/mediawiki/includes/db/Database.php(1234): DatabaseBase->query(string, string)
#2 /Applications/MAMP/htdocs/mediawiki/includes/db/Database.php(1293): DatabaseBase->select(string, array, array, string, array, array)
#3 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(306): DatabaseBase->selectRow(string, array, array, string, array)
#4 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(325): WikiPage->pageData(DatabaseMysqli, array, array)
#5 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(361): WikiPage->pageDataFromTitle(DatabaseMysqli, Title, array)
#6 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(444): WikiPage->loadPageData()
#7 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(485): WikiPage->exists()
#8 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(210): WikiPage->getContentModel()
#9 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(196): WikiPage->getContentHandler()
#10 /Applications/MAMP/htdocs/mediawiki/includes/actions/Action.php(96): WikiPage->getActionOverrides()
#11 /Applications/MAMP/htdocs/mediawiki/includes/actions/Action.php(154): Action::factory(string, WikiPage, RequestContext)
#12 /Applications/MAMP/htdocs/mediawiki/includes/MediaWiki.php(150): Action::getActionName(RequestContext)
#13 /Applications/MAMP/htdocs/mediawiki/includes/MediaWiki.php(652): MediaWiki->getAction()
#14 /Applications/MAMP/htdocs/mediawiki/includes/MediaWiki.php(509): MediaWiki->main()
#15 /Applications/MAMP/htdocs/mediawiki/index.php(43): MediaWiki->run()
#16 {main}
[queries] wiktionary: ROLLBACK /* MWExceptionHandler::rollbackMasterChangesAndLog 0:0:0:0:0:0:0:1 */
[exception] [d16603c55a86c86fa232084c] /mediawiki/index.php DBQueryError from line 934 of /Applications/MAMP/htdocs/mediawiki/includes/db/Database.php: A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT page_id,page_namespace,page_title,page_restrictions,page_is_redirect,page_is_new,page_random,page_touched,page_links_updated,page_latest,page_len,page_content_model FROM `page` WHERE page_namespace = '4' AND page_title = 'Main_Page' LIMIT 1
Function: WikiPage::pageData
Error: 1054 Unknown column 'page_links_updated' in 'field list' (localhost)
#0 /Applications/MAMP/htdocs/mediawiki/includes/db/Database.php(901): DatabaseBase->reportQueryError(string, integer, string, string, boolean)
#1 /Applications/MAMP/htdocs/mediawiki/includes/db/Database.php(1234): DatabaseBase->query(string, string)
#2 /Applications/MAMP/htdocs/mediawiki/includes/db/Database.php(1293): DatabaseBase->select(string, array, array, string, array, array)
#3 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(306): DatabaseBase->selectRow(string, array, array, string, array)
#4 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(325): WikiPage->pageData(DatabaseMysqli, array, array)
#5 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(361): WikiPage->pageDataFromTitle(DatabaseMysqli, Title, array)
#6 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(444): WikiPage->loadPageData()
#7 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(485): WikiPage->exists()
#8 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(210): WikiPage->getContentModel()
#9 /Applications/MAMP/htdocs/mediawiki/includes/page/WikiPage.php(196): WikiPage->getContentHandler()
#10 /Applications/MAMP/htdocs/mediawiki/includes/actions/Action.php(96): WikiPage->getActionOverrides()
#11 /Applications/MAMP/htdocs/mediawiki/includes/actions/Action.php(154): Action::factory(string, WikiPage, RequestContext)
#12 /Applications/MAMP/htdocs/mediawiki/includes/MediaWiki.php(150): Action::getActionName(RequestContext)
#13 /Applications/MAMP/htdocs/mediawiki/includes/MediaWiki.php(652): MediaWiki->getAction()
#14 /Applications/MAMP/htdocs/mediawiki/includes/MediaWiki.php(509): MediaWiki->main()
#15 /Applications/MAMP/htdocs/mediawiki/index.php(43): MediaWiki->run()
#16 {main}
[queries] wiktionary: BEGIN /* DatabaseBase::query (LinkBatch::doQuery (for Skin::preloadExistence)) 0:0:0:0:0:0:0:1 */
[queries] wiktionary: SELECT /* LinkBatch::doQuery (for Skin::preloadExistence) 0:0:0:0:0:0:0:1 */ page_id,page_namespace,page_title,page_len,page_is_redirect,page_latest,page_content_model FROM `page` WHERE (page_namespace = '5' AND page_title = 'Main_Page')
SQL ERROR: Unknown column 'page_content_model' in 'field list' (localhost)
[session] Saving all sessions on shutdown
wfClientAcceptsGzip: client accepts gzip.
wfGzipHandler() is compressing output