When creating a new website page on Wikiapiary, right after saving, I got this messages at the very top of the page:
Notice: Undefined variable: mappings in /srv/www/mediawiki/public_html/w/extensions/ExternalData/ED_ParserFunctions.php on line 535
Warning: Invalid argument supplied for foreach() in /srv/www/mediawiki/public_html/w/extensions/ExternalData/ED_ParserFunctions.php on line 535
If I reload the page I don't get them again.