I was using 000webhost installed blog wordpress 3.4.2
things happed as
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 7680 bytes) in /home/a4891955/public_html/wp-admin/includes/template.php on line 458
when i was try to application a theme
front store still can view but i can no longer link to the admin area. tried resend all the 3.4.2 files use ftp.still didnt fix the problem.