[Plugin: Widget Builder] Site Stopped Functioning After Creating First Widget

I’ve removed the installed plugin files from the plugin folder (via FTP) and the test site (localhost using MAMP) is now functioning. I tried disabling all other plugins and then installed and enabled the Widget Builder plugin but got the same result with the site not displaying in my browser.
I tried installing the plugin on a remote (live) server and found that the plugin works perfectly, so the problem might be with my MAMP installation.
I would still like to know if this is a known issue, there seems to be some residual code or data which remains on my WordPress installation, when reinstalling Widget Builder the site becomes immediately disabled again (blank pages).
Thanks
Steve

Thanks for the report Steve!

Did you get any log messages in your PHP log? I’ve never seen that happen. I’d love to figure it out and fix it. I’m not sure how to reproduce this issue though.

Hi Peter,
Thanks for having a look at this for me.
I didn’t get any PHP error messages on screen, where will I find the PHP log?
Thanks
Steve

Hmm.. it depends on the server. I think you could probably get it on your screen if you set your wp-config.php to display errors. But if this is a live site, I’d recommend asking the host for the location of your php error log and you should be able to see any errors in there.

@nacin wrote a great article on debugging:
https://nacin.com/2010/04/23/5-ways-to-debug-wordpress/

For this, I think simply setting WP_DEBUG to true would probably display errors on the screen:

define( ‘WP_DEBUG’, true );

Hi Peter,
I changed the WP_DEBUG to true and now the site and plugin are working?
I suspect that something else has changed but anyhow the staged site is now functioning. A bit of a mystery?
Thanks for your help.
Steve

Oh, cool. Just to be clear though… I would not recommend leaving WP_DEBUG on. It could have performance impacts on your site and could even give hackers enough info to cause some damage on your site. It’s good for quick tests or for coding on your own computer but not so good for production sites.

Hi Peter,
Have turned WP_DEBUG off and the site is still working.
Thanks again for your help.
Steve