( ! ) Fatal error: Class 'HTMLPurifier_AttrDef' not found in C:\wamp64\www\libs\phpspreadsheet\ezyang\htmlpurifier\library\HTMLPurifier\AttrDef\Clone.php on line 8
Call Stack
#	Time	Memory	Function	Location
1	0.0027	239224	{main}( )	...\Clone.php:0