Error's showing in the Matomo application

Any insights will be greatly appreciated.
Here are the error’s showing in the Matomo application:

Oops…there was a problem during the request. Maybe the server had a temporary issue, or maybe you requested a report with too much data. Please try again. If this error occurs repeatedly please contact your Matomo administrator for assistance.

Here is the error form Apache’s error_log:

[Tue Sep 11 11:25:56.088555 2018] [:error] [pid 10625:tid 140676343752448] [client XXX.XXX.XXX.XXX:16059] client denied by server configuration: /home/xxx195sj/public_html/statistics/index.php, referer: https://XXX.XXX/statistics/index.php?module=CoreHome&action=index&idSite=4&period=range&date=last30&updated=1

Looking over the FAQ, found the following:

These references the error “client denied by server configuration”, but following the suggestions from them does not change the issue.

The System check shows everything should be configured properly. And I was running an older Matomo version, so updated as well to only show the same issue.
The Matomo is running on a Centos 7 server with Apache 4