I was just clicking the update button behind in the admin panel. it said no enough space in my hosting. then i went and removed some files and tried again then it was processing the wp update. suddenly it took me to a blank page and now the entire site looks empty.
I am guessing this could be due to space limitation in hosting account. even though i removed a few and tried updating, it might have meet not enough space in the middle of updating and its leading to this issue.
Also in the mean time i tried accessing this page:
www.mywebsite.com/wp-admin/update-core.php and got the below error.
Fatal error: Call to undefined function nocache_headers() in /home/webmas8/public_html/azraar/wp-admin/admin.php on line 32
This is the website that causes the issue: http://www.azraar.com/