( ! ) Fatal error: Uncaught Error: Class "plugin_renderer_base" not found in C:\wamp64\www\question\bank\statistics\classes\output\renderer.php on line 28
( ! ) Error: Class "plugin_renderer_base" not found in C:\wamp64\www\question\bank\statistics\classes\output\renderer.php on line 28
Call Stack
#	Time	Memory	Function	Location
1	0.0330	362824	{main}( )	...\renderer.php:0