Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate

Using FTP you can try increasing the memory for PHP and WordPress in several different ways:

1) You can edit the memory_limit line in your php.ini (if you have access to that file) to increase memory to 64M:

memory_limit = 64M;

2) Try adding the “define” line below in your wp-config.php file a few lines of white space below the opening <?php in the file:

define('WP_MEMORY_LIMIT', '64M');

3) If those don’t work, try adding this line at the top of your .htaccess file:

php_value memory_limit 64M

If that doesn’t work or throws a “500 Internal Server Error”, delete the line from .htaccess.

If none of those work, your host probably doesn’t allow memory allocation overrides. You’re stuck with what they give.

I have completed above said jobs but i find blank site
https://pkjobs.netii.net/ there is nothing.

and when i open admin panel i find

Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 30720 bytes) in /home/a5804152/public_html/wp-admin/includes/update.php on line 379

I am assuming you are on a paid web host server, but I would talk with them, it could be a server-side issue.