( ! ) Warning: require(/var/www/elc_new_staging/wp-includes/html-api/class-wp-html-doctype-info.php): failed to open stream: No such file or directory in /var/www/elc_new_staging/wp-settings.php on line 257
Call Stack
#	Time	Memory	Function	Location
1	0.0002	390216	{main}( )	.../index.php:0
2	0.2315	392472	require( '/var/www/elc_new_staging/wp-blog-header.php )	.../index.php:19
3	0.2317	418264	require_once( '/var/www/elc_new_staging/wp-load.php )	.../wp-blog-header.php:13
4	0.2318	435520	require_once( '/var/www/elc_new_staging/wp-config.php )	.../wp-load.php:51
5	0.2320	437024	require_once( '/var/www/elc_new_staging/wp-settings.php )	.../wp-config.php:189

( ! ) Fatal error: require(): Failed opening required '/var/www/elc_new_staging/wp-includes/html-api/class-wp-html-doctype-info.php' (include_path='.:/usr/share/php') in /var/www/elc_new_staging/wp-settings.php on line 257
Call Stack
#	Time	Memory	Function	Location
1	0.0002	390216	{main}( )	.../index.php:0
2	0.2315	392472	require( '/var/www/elc_new_staging/wp-blog-header.php )	.../index.php:19
3	0.2317	418264	require_once( '/var/www/elc_new_staging/wp-load.php )	.../wp-blog-header.php:13
4	0.2318	435520	require_once( '/var/www/elc_new_staging/wp-config.php )	.../wp-load.php:51
5	0.2320	437024	require_once( '/var/www/elc_new_staging/wp-settings.php )	.../wp-config.php:189