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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
	120905	view	14:16, 29 January 2022	Egonw	Replaced an old HMDB identifier with the current one
	120356	view	15:27, 28 November 2021	Egonw	Fixed a PubMed ID
	117520	view	11:08, 21 May 2021	Eweitz	Modified title
	107053	view	14:14, 17 September 2019	MaintBot	ChEBI identifier normalization
	106009	view	11:53, 16 August 2019	MaintBot	HMDB identifier normalization
	98246	view	14:20, 14 August 2018	Egonw	Replace a PubChem SID with a Wikidata ID (which has more links out).
	96339	view	15:36, 8 March 2018	Mkutmon	Updated homology conversion
	96338	view	15:35, 8 March 2018	Mkutmon	Ontology Term : 'folate metabolic pathway' added !
	86818	view	16:41, 11 July 2016	Egonw	Connecting lines.
	85065	view	11:31, 10 April 2016	Egonw	Replaced a Wikipedia ID with a ChEBI ID.
	82706	view	08:57, 23 October 2015	Egonw	oxLDL has a separate identifier.
	80891	view	15:30, 30 June 2015	Mkutmon	homology conversion
	74466	view	16:08, 24 April 2014	Egonw	Fixed a PubMed ID.
	72574	view	15:52, 23 November 2013	Egonw	Replaced an outdated HMDB identifier with the 3.5 one.
	72367	view	09:46, 13 November 2013	Egonw	Replaced old PubChem data sources with their new equivalents.
	72366	view	09:40, 13 November 2013	Egonw	Fixed the type of two proteins.
	71408	view	19:01, 17 October 2013	MaintBot	Automated update of data sources
	63348	view	22:21, 9 May 2013	MaintBot	Updated to 2013 gpml schema
	58813	view	23:18, 20 February 2013	MaintBot	Updated Ensembl and UniProt data source
	40522	view	19:29, 1 March 2011	MaintBot	Removed redundant pathway information and comments
	33765	view	00:04, 9 December 2009	MaintBot	Automatic update of empty xrefs
	33195	view	18:18, 5 November 2009	Khanspers	Modified categories
	32527	view	12:58, 17 August 2009	MaintBot	Fixed text labels
	32214	view	12:44, 15 August 2009	MaintBot	Fixed text labels
	31708	view	11:51, 14 August 2009	MaintBot	Fixed group labels
	31225	view	19:43, 13 August 2009	MaintBot	Fixed text labels
	30644	view	22:31, 29 July 2009	MaintBot	New pathway

Error details

exception 'MWException' with message 'Invalid pvjson, so cannot savePvjsonCache.' in /var/www/wikipathways/wpi/extensions/Pathways/Pathway.php:1278
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, 32214)
#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}