Support » Plugin: Ninja Forms Contact Form - The Drag and Drop Form Builder for WordPress » On form edit time generate js error.

  • Resolved ravipatel


    Now we have using your latest version. Form edit time generate this issue.
    TypeError: n.substring is not a function

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  • Plugin Contributor Justin McElhaney


    Can you try deactivating all your plugins that are not for Ninja Forms and switching to a default WordPress theme like Twenty Sixteen. If this solves your issue, then the problem was caused by an issue in one of those plugins or your theme. Reactivate them one at a time until the issue returns to determine which plugin is causing the conflict. At that time, we recommend reaching out to the developer of that plugin for further assistance.

    If you do not have a development environment for your site (this is best practice and highly recommended), the Health Check plugin ( can disable plugins and theme for a single user session instead of all users on your site.

    If you continue to have issues, can you contact use through our official support forum.

    Plugin Contributor Justin McElhaney


    This turned out to be a bug and our developers will be releasing a fix for it in version 3.3.6 of Ninja Forms

Viewing 2 replies - 1 through 2 (of 2 total)
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