Facing some issues with the forum since evening

Hello guyz,

I am facing some problems with the forum since today evening:
1. I cannot use the advanced reply(newreply.php page)
2. I cannot send or reply to PMs.

Everytime I try it says that 'Your message is too short. Please enter at least 1 character'

Also, while using the quick reply, after posting the reply, instead of simply appending my reply to the page, it refreshes the whole page.

Anyone else facing this issue?


UPDATE: I am able to post new threads when I use the basic textarea option instead of WYSIWYG editor mode