Exception encountered, of type "Error"
[cf06c00f] /wiki/index.php/Special:WTLiPD?op=export&lipdid=Afr-LakeMalawi.Powers.2011 Error from line 437 of /var/www/html/smw/odp/linked.earth/wiki/extensions/WorkflowTasks/includes/page/category/special/lipd/bagit/lib/bagit_utils.php: Class 'ZipArchive' not found
Backtrace:
#0 /var/www/html/smw/odp/linked.earth/wiki/extensions/WorkflowTasks/includes/page/category/special/lipd/bagit/lib/bagit.php(497): BagIt_compressBag(string, string, string)
#1 /var/www/html/smw/odp/linked.earth/wiki/extensions/WorkflowTasks/includes/page/category/special/lipd/BagitHelper.inc(59): BagIt->package(string, string)
#2 /var/www/html/smw/odp/linked.earth/wiki/extensions/WorkflowTasks/includes/page/category/special/lipd/LiPDWiki.inc(36): BagitHelper::createLiPD(string, string)
#3 /var/www/html/smw/odp/linked.earth/wiki/extensions/WorkflowTasks/includes/page/category/special/lipd/WTLiPD.inc(88): LiPDWiki->export(OutputPage)
#4 /var/www/html/smw/odp/linked.earth/wiki/extensions/WorkflowTasks/includes/page/category/special/lipd/WTLiPD.inc(41): WTLiPD->exportLiPD(string, WebRequest, OutputPage)
#5 /var/www/html/smw/odp/linked.earth/wiki/extensions/WorkflowTasks/includes/page/category/special/lipd/WTLiPD.inc(21): WTLiPD->handleOperation(WebRequest, OutputPage)
#6 /var/www/html/smw/odp/linked.earth/wiki/includes/specialpage/SpecialPage.php(384): WTLiPD->execute(NULL)
#7 /var/www/html/smw/odp/linked.earth/wiki/includes/specialpage/SpecialPageFactory.php(553): SpecialPage->run(NULL)
#8 /var/www/html/smw/odp/linked.earth/wiki/includes/MediaWiki.php(281): SpecialPageFactory::executePath(Title, RequestContext)
#9 /var/www/html/smw/odp/linked.earth/wiki/includes/MediaWiki.php(714): MediaWiki->performRequest()
#10 /var/www/html/smw/odp/linked.earth/wiki/includes/MediaWiki.php(508): MediaWiki->main()
#11 /var/www/html/smw/odp/linked.earth/wiki/index.php(41): MediaWiki->run()
#12 {main}