Exception encountered, of type "Error"
[794faded329b7cf1cc71e677] /index.php?title=Prova&diff=1361&oldid=1360 Error from line 35 of /var/lib/mediawiki/extensions/Exam.php: Class 'ExamDB' not found
Backtrace:
#0 /var/lib/mediawiki/includes/parser/Parser.php(4279): SelectCourse(string, array, Parser, PPFrame_DOM)
#1 /var/lib/mediawiki/includes/parser/Preprocessor_DOM.php(1260): Parser->extensionSubstitution(array, PPFrame_DOM)
#2 /var/lib/mediawiki/includes/parser/Parser.php(3380): PPFrame_DOM->expand(DOMElement, integer)
#3 /var/lib/mediawiki/includes/parser/Parser.php(1261): Parser->replaceVariables(string)
#4 /var/lib/mediawiki/includes/parser/Parser.php(452): Parser->internalParse(string)
#5 /var/lib/mediawiki/skins/bootstrap-mediawiki/BootstrapMediaWiki.skin.php(495): Parser->parse(string, Title, ParserOptions)
#6 /var/lib/mediawiki/skins/bootstrap-mediawiki/BootstrapMediaWiki.skin.php(244): BootstrapMediaWikiTemplate->includePage(string)
#7 /var/lib/mediawiki/includes/skins/SkinTemplate.php(248): BootstrapMediaWikiTemplate->execute()
#8 /var/lib/mediawiki/includes/OutputPage.php(2335): SkinTemplate->outputPage()
#9 /var/lib/mediawiki/includes/MediaWiki.php(743): OutputPage->output()
#10 /var/lib/mediawiki/includes/MediaWiki.php(509): MediaWiki->main()
#11 /var/lib/mediawiki/index.php(43): MediaWiki->run()
#12 {main}
