Fatal error: Out of memory (allocated 2097152) (tried to allocate 4096 bytes) in C:\xampp\htdocs\2015\libraries\cms\html\html.php on line 977

Fatal error: Out of memory (allocated 2097152) (tried to allocate 20480 bytes) in C:\xampp\htdocs\2015\libraries\vendor\joomla\registry\src\Registry.php on line 77