You can increase the memory limit of PHP by modifying the php.ini file in your public_html folder to solve this type of memory issue.
On your custom php.ini File >> The line you want to change is: "memory_limit = 32M" to "memory_limit = 64M"
If you need a custom php.ini file for your account please upload the file at the below URL to your public_html folder.
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http://secure.webhost.lk/downloads/3/PHP
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If you are not seeing the settings in the file taking place, please put the following line in your .htaccess file, also located in your public_html folder.
Be sure to change the text "USERNAME" to your cPanel account's actual username so it uses the correct path.
SetEnv PHPRC /home/USERNAME/public_html
** Don't FORGET TO KEEP a Backup copy of existing .htaccess file before modifying above setting
