( ! ) Fatal error: Out of memory (allocated 36438016) (tried to allocate 12288 bytes) in C:\wamp64\www\wp-content\plugins\gravityforms\includes\class-gf-upgrade.php on line 1391
Call Stack
#	Time	Memory	Function	Location
1	0.0016	234544	{main}( )	...\index.php:0
2	0.0027	237616	require( 'C:\wamp64\www\wp-blog-header.php' )	...\index.php:17
3	0.0047	258096	require_once( 'C:\wamp64\www\wp-load.php' )	...\wp-blog-header.php:13
4	0.0063	268688	require_once( 'C:\wamp64\www\wp-config.php' )	...\wp-load.php:37
5	0.0699	425112	require_once( 'C:\wamp64\www\wp-settings.php' )	...\wp-config.php:89
6	6.5777	24747184	include_once( 'C:\wamp64\www\wp-content\plugins\gravityforms\gravityforms.php' )	...\wp-settings.php:305
7	8.2065	36071872	gf_upgrade( )	...\gravityforms.php:201