LANG_CLEANER_RUN /plugins/ClickHeat/libs/cleaner.php(157)

Tried accessing the ClickHeat plugin, and was presented with an error:

Fatal error: Class 'Piwik_ClickHeat_Controller' not found in /home/twitco/public_html/analytics/plugins/ClickHeat/libs/layout.php on line 18

The following error just broke Piwik (v2.13.1):
Class 'Piwik_ClickHeat_Controller' not found
/home/twitco/public_html/analytics/plugins/ClickHeat/libs/layout.php line 18

Now on subsequent pages I receive the following error:

WARNING: /home/twitco/public_html/analytics/plugins/ClickHeat/libs/cleaner.php(157): Notice - Use of undefined constant LANG_CLEANER_RUN - assumed 'LANG_CLEANER_RUN' - Piwik 2.13.1 - Please report this message in the Piwik forums: (please do a search first as it might have been reported already)

I’ve not found this issue already reported on forums or GitHub. The ClickHeat map would not generate.

Hi William

please report the issue directly in the github issue tracker for this plugin: GitHub - piwikjapan/plugin-clickheat

Good news: we’re working on Heatmap Analytics for Piwik + scrollmap + click map! It will be awesome and make sure to hear when it’s released by signing up here: