The answer i got was Increase your memory_limit to 128M in the wp-includes/default-constants.php file on about line 23.but to increase the memory which page shall i visit. how to reach wp-includes/default-constants.php file on about line 23.Now i am unable to add any new plug in or remove any plug in, because when plug-in is clicked on the Dashboard this page is displayed with the message (Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 24 bytes) in /home3/forexin4/public_html/wp-includes/l10n.php on line 69).