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Error rendering pathway page

This revision of the pathway probably contains invalid GPML code. If this happens to the most recent revision, try reverting the pathway using the pathway history displayed below or contact the site administrators (see WikiPathways:About) to resolve this problem.

Pathway history

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Compare	Revision	Action	Time	User	Comment
	117316	view	11:21, 20 May 2021	Eweitz	Modified title
	71345	view	18:02, 17 October 2013	MaintBot	Automated update of data sources
	70051	view	05:59, 12 July 2013	Egonw	Marked a few DataNodes with CAS registry numbers as metabolites.
	69615	view	20:33, 8 July 2013	MaintBot	Updated to 2013 gpml schema
	67503	view	11:10, 26 June 2013	Ddigles	Ontology Term : 'NAD biosynthetic pathway' added !
	54304	view	13:51, 27 November 2012	Egonw	Replaced a Label with a DataNode.
	41849	view	04:51, 2 March 2011	MaintBot	Removed redundant pathway information and comments
	20857	view	11:30, 14 November 2008	MaintBot	[[Pathway:Saccharomyces cerevisiae:NAD Biosynthesis]] moved to [[Pathway:WP84]]: Moved to stable identifier
	12786	view	08:02, 17 May 2008	MaintBot	automated metabolite conversion
	8837	view	14:10, 7 January 2008	MaintBot	Added to category $category
	8835	view	14:10, 7 January 2008	M.Braymer	Uploaded new pathway

Error details

exception 'MWException' with message 'Invalid pvjson, so cannot savePvjsonCache.' in /var/www/wikipathways/wpi/extensions/Pathways/Pathway.php:1277
Stack trace:
#0 /var/www/wikipathways/wpi/extensions/Pathways/Pathway.php(584): Pathway->savePvjsonCache()
#1 /var/www/wikipathways/wpi/extensions/Pathways/PathwayPage.php(295): Pathway->getPvjson()
#2 /var/www/wikipathways/wpi/extensions/Pathways/PathwayPage.php(169): PathwayPage->Diagram()
#3 /var/www/wikipathways/wpi/extensions/Pathways/PathwayPage.php(24): PathwayPage->render()
#4 [internal function]: renderPathwayPage(Object(Parser), '<?xml version="...', Object(StripState))
#5 /var/www/wikipathways/includes/Hooks.php(125): call_user_func_array('renderPathwayPa...', Array)
#6 /var/www/wikipathways/includes/parser/Parser.php(318): wfRunHooks('ParserBeforeStr...', Array)
#7 /var/www/wikipathways/includes/Article.php(3406): Parser->parse('<?xml version="...', Object(Title), Object(ParserOptions), true, true, 12786)
#8 /var/www/wikipathways/includes/Article.php(875): Article->outputWikiText('<?xml version="...', false)
#9 /var/www/wikipathways/includes/Wiki.php(437): Article->view()
#10 /var/www/wikipathways/includes/Wiki.php(59): MediaWiki->performAction(Object(OutputPage), Object(Article), Object(Title), Object(User), Object(WebRequest))
#11 /var/www/wikipathways/index.php(93): MediaWiki->initialize(Object(Title), Object(Article), Object(OutputPage), Object(User), Object(WebRequest))
#12 {main}