ersion([ 'value' => '10.0' ]);
                    $this->data->browser->mode = 'compat';
                }

                if ($this->data->engine->version->toNumber() == 5 && $this->data->browser->version->toFloat() < 9) {
                    $this->data->browser->version = new Version([ 'value' => '9.0' ]);
                    $this->data->browser->mode = 'compat';
                }

                if ($this->data->engine->version->toNumber() == 4 && $this->data->browser->version->toFloat() < 8) {
                    $this->data->browser->version = new Version([ 'value' => '8.0' ]);
                    $this->data->browser->mode = 'compat';
                }
            }

            if (isset($this->data->os->version) && isset($this->data->os->name) && $this->data->os->name == 'Windows Phone' && isset($this->data->browser->name) && $this->data->browser->name == 'Mobile Internet Explorer') {
                if ($this->data->engine->version->toNumber() == 7 && $this->data->os->version->toFloat() < 8.1) {
                    $this->data->os->version = new Version([ 'value' => '8.1', 'details' => 2 ]);
                }

                if ($this->data->engine->version->toNumber() == 5 && $this->data->os->version->toFloat() < 7.5) {
                    $this->data->os->version = new Version([ 'value' => '7.5', 'details' => 2 ]);
                }
            }
        }
    }


    /* EdgeHTML */

    private function detectEdgeHTMLUseragent($ua)
    {
        if (preg_match('/Edge\/([0-9.]*)/u', $ua, $match)) {
            $this->data->engine->name = 'EdgeHTML';
            $this->data->engine->version = new Version([ 'value' => $match[1], 'hidden' => true ]);
        }
    }
}
<br />
<b>Fatal error</b>:  Trait 'WhichBrowser\Analyser\Header\Useragent\Engine' not found in <b>/home/payon/public_html/wp-content/plugins/wp-statistics/includes/vendor/whichbrowser/parser/src/Analyser/Header/Useragent.php</b> on line <b>5</b><br />