CumulusMX Website and popup Graphs not working

[uktricky]

Hi,

Very new to this Application and Website (CumulusMX MultiLing)
My graphs on the gauges don't popup (just show an empty box)

If I goto the URL directly: http://10.1.11.1/mxui/graphPress.php I get the following error:
Fatal error: Uncaught TypeError: Argument 1 passed to JpGraphException::defaultHandler() must be an instance of Exception, instance of Error given in /var/www/html/mxui/jpgraph/jpgraph_errhandler.inc.php:158 Stack trace: #0 [internal function]: JpGraphException::defaultHandler(Object(Error)) #1 {main} thrown in /var/www/html/mxui/jpgraph/jpgraph_errhandler.inc.php on line 158

Any ideas?

Screenshot 2021-04-10 at 16.27.39.png

Running latest versions of Cumulus MX and the Website 2.2.1a
Website running PHP 7.2

[uktricky]

Fixed ... My docker image for php and apache didn't have the php GD software
So created my own docker image with php7.3 and Apache with the required plug-ins also meant I could add the modrewrite in apache too

Screenshot 2021-04-11 at 20.18.29.png