Upon activation, my site crashed with a fatal error on line 285 in includes/class-codetot-admin-options-page.php because it passed a named parameter 'type' to the add_settings_field() function. This was included in line 270 of the same file, since $this->defaults['add_settings_field'] has an 'args' element.

I temporarily fixed this by changing line 270 to read:

$params = array_slice($params, 0, 5); // count($this->defaults['add_settings_field']));

Please be advised.