PHP Warning: undefined constant is_robot and APP_POST_TYPE

Hello,

I receive multiple PHP warning using the post-views plugin on
– WordPress 5.4;
– PHP Versions 7.1.

From my error_log:

PHP Warning:  Use of undefined constant is_robot 
  - assumed 'is_robot' 
  (this will throw an Error in a future version of PHP) 
  in /wp-content/plugins/post-views/post-views.php on line 594
PHP Warning:  Use of undefined constant APP_POST_TYPE 
  - assumed 'APP_POST_TYPE'
  (this will throw an Error in a future version of PHP) 
  in /wp-content/plugins/post-views/post-views.php on line 1854

The second warning is thrown on multiple lines: 1854 1855 1861 1864 1865.

• This topic was modified 4 years, 10 months ago by orion42.
• This topic was modified 4 years, 10 months ago by orion42. Reason: code layout edit

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