Check the health of your site. You will receive a report at the end of the test then you will be able to download the pdf report. The SiteDoctor will provide suggestions corresponding to each issue. Try now to see the results!
example: http://yourdomain.com
Severity: Notice
Message: Trying to access array offset on value of type null
Filename: site/index.php
Line Number: 34
Severity: Notice
Message: Trying to access array offset on value of type null
Filename: site/index.php
Line Number: 34
Severity: Notice
Message: Trying to access array offset on value of type null
Filename: site/index.php
Line Number: 34