There was a problem with the MySQL Query: UPDATE supertracker set last_click='2019-09-18 21:56:43', exit_page='/5.2_Features_of_'well_formed'_signs-i-451.html', num_clicks='2', pages_viewed='', properties_viewed='' where tracking_id='546993'
The result was : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'well_formed'_signs-i-451.html', num_clicks='2', pages_viewed='', properties_view' at line 1