nginx - Wordpress - PHP Fatal Error - functions.php - while trying to get to wp-admin -


i have w3tc, nginx, varnish , php5-fpm installed on ubuntu 12.04 image 768 mb ram. site functioning fine, when try access /wp-admin http 500 internal server error.

i have went logs , have looked , found following error:

php message: php fatal error: allowed memory size of 67108864 bytes exhausted (tried allocate 5184285 bytes) in /var/www/wp-includes/functions.php on line 251 while reading response header upstream

i have seen many posts says make following settings:

increase allocated memory in wp-config.php or wherever need it:

define('wp_memory_limit', '64m');

in case php running out of memory, can increase modifying php.ini , restarting web server.

memory_limit 256m

but haven't had luck. have restored image previous backup , issue still exists. no plugins have been modified or updated since previous time able access backend.

i turned wp_debug true , saw this:

notice: wp_enqueue_script called incorrectly. scripts , styles should not registered or enqueued until wp_enqueue_scripts , admin_enqueue_scripts , or init hooks. please see debugging in wordpress more information. (this message added in version 3.3.) in /var/www/wp-includes/functions.php on line 2758 notice: wp_enqueue_style called incorrectly. scripts , styles should not registered or enqueued until wp_enqueue_scripts , admin_enqueue_scripts , or init hooks. please see debugging in wordpress more information. (this message added in version 3.3.) in /var/www/wp-includes/functions.php on line 2758 notice: undefined variable: paged in /var/www/wp-content/themes/organic_magazine/functions.php on line 419


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