Help !!!

I keep getting this thing every time I try to post updates to my build off 11 post-->(Internal Server Error)
and its starting to get on my nerves, please help I have stuff to post.

 

http://www.ratrodbikes.com/forum/index.php?threads/anyone-else-getting-this.98208/#post-979651

 

http://www.ratrodbikes.com/forum/index.php?threads/internal-server-error.98254/#post-980972

 

http://www.ratrodbikes.com/forum/in...e-recent-site-upgrade-work.97782/#post-975462

 

My issue seemed to be recent Firefox updates...
I can post from my phone (android)
and I've put the Opera browser on my laptop,
since Chrome stopped supporting XP (my old laptop)
I now have no problems...

Carl.