A PHP Error was encountered

Severity:    Notice
Message:     Trying to get property 'website' of non-object
Filename:    controllers/Scraping_tracking.php
Line Number: 27

A PHP Error was encountered

Severity:    Notice
Message:     Undefined index: HTTP_REFERER
Filename:    controllers/Scraping_tracking.php
Line Number: 31

A PHP Error was encountered

Severity:    Warning
Message:     Cannot modify header information - headers already sent by (output started at /home/mob4me/public_html/system/core/Exceptions.php:271)
Filename:    core/Common.php
Line Number: 564

Database error: 

<p>Error Number: 1048</p><p>Column 'website' cannot be null</p><p>INSERT INTO `websites_scraping_clicks` (`link_id`, `website`, `visitor_ip`, `click_at`, `country`, `on_page`) VALUES ('15268', NULL, '3.235.11.178', '2021-03-05 22:29:25', 'us', NULL)</p><p>Filename: models/ScrapingClicks_m.php</p><p>Line Number: 25</p>