I'm trying to add Additional Fields using the addon included with Appointments+. After enabling the addon the General Settings page does not completely render, it fails while building the Additional Fields section.
Here's where it fails:
<script id="app-additional_fields-template" type="text/template">
Required: <b><?php echo esc_js(__("Yes", "appointments")); ?></b>
<input type="hidden" name="app-additional_fields" value="
(it dies right after the last double quote, there's nothing else rendered to the page)
I've tried uninstalling the plugin (several times). Seems like there's still a setting or something broken in a table somewhere but I can't seem to find it.