{"id":8990182,"date":"2017-04-04T10:18:00","date_gmt":"2017-04-04T10:18:00","guid":{"rendered":"https:\/\/wordpress.org\/support\/topic\/error-after-activating-ninja-forms\/"},"modified":"2017-04-04T10:18:00","modified_gmt":"2017-04-04T10:18:00","slug":"error-after-activating-ninja-forms","status":"publish","type":"topic","link":"https:\/\/wordpress.org\/support\/topic\/error-after-activating-ninja-forms\/","title":{"rendered":"Error after activating ninja forms"},"content":{"rendered":"<p>Hi,<\/p>\n<p>I have just upgraded my wp site to the latest version and I then I updated ninja forms.  I had to do this manually by copying the downloaded plugin over to my site.<\/p>\n<p>I then tried to activate ninja form using the admin console but the page goes to a http 500 error.  <\/p>\n<p>looking in my error log for the wp site I get the following message.<\/p>\n<blockquote><p>[04-Apr-2017 09:49:10 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function ninja_forms_register_field() in D:\\Mywpsite\\wp-content\\plugins\\ninja-forms\\includes\\fields\\calc.php:53<br \/>\nStack trace:<br \/>\n#0 D:\\Mywpsite\\wp-includes\\class-wp-hook.php(298): ninja_forms_register_field_calc(&#8221;)<br \/>\n#1 D:\\Mywpsite\\wp-includes\\class-wp-hook.php(323): WP_Hook-&gt;apply_filters(NULL, Array)<br \/>\n#2 D:\\Mywpsite\\wp-includes\\plugin.php(453): WP_Hook-&gt;do_action(Array)<br \/>\n#3 D:\\Mywpsite\\wp-settings.php(449): do_action(&#8216;init&#8217;)<br \/>\n#4 D:\\Mywpsite\\wp-config.php(87): require_once(&#8216;D:\\\\Mywpsite\\\\wp&#8230;&#8217;)<br \/>\n#5 D:\\Mywpsite\\wp-load.php(37): require_once(&#8216;D:\\\\Mywpsite\\\\wp&#8230;&#8217;)<br \/>\n#6 D:\\Mywpsite\\wp-blog-header.php(13): require_once(&#8216;D:\\\\Mywpsite\\\\wp&#8230;&#8217;)<br \/>\n#7 D:\\Mywpsite\\index.php(17): require(&#8216;D:\\\\Mywpsite\\\\wp&#8230;&#8217;)<br \/>\n#8 {main}<br \/>\n  thrown in D:\\Mywpsite\\wp-content\\plugins\\ninja-forms\\includes\\fields\\calc.php on line 53<\/p><\/blockquote>\n<p>Can anyone help?<\/p>\n","protected":false},"template":"","class_list":["post-8990182","topic","type-topic","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/8990182","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic"}],"about":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/8990182\/revisions"}],"wp:attachment":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/media?parent=8990182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}