( ! ) Fatal error: Uncaught Error: Interface "renderable" not found in C:\wamp64\www\course\format\classes\output\local\state\course.php on line 32
( ! ) Error: Interface "renderable" not found in C:\wamp64\www\course\format\classes\output\local\state\course.php on line 32
Call Stack
#	Time	Memory	Function	Location
1	0.0095	363336	{main}( )	...\course.php:0