Hello,
I had this same issue. The problem occurred for me because I changed the name of the “Tip Fee Name” field in the plugin setup. I changed the name from the default value of “Tip” to “Donation” and this caused reporting to break.
To fix, use the Plugin File Editor and modify order-tip-woo/admin/controllers/reports.class.php which is located under Plugin Files –> Admin –> Controllers –> reports.class.php.
Under lines 45 and 46, you will see the word “Tip” appear under. Update that value to the value you used on the Tip Name Field in the plugin setup. You can see mine below:
45 $this->fee_names = get_option( ‘wc_order_tip_fee_names’, array() );
46 if( ! in_array( ‘Donation‘, $this->fee_names ) ) {
47 $this->fee_names[] = ‘Donation‘; //Backward compatibility with previously added tips
Once I did this, the report worked normally.