Joomla error message

So, I'm trying to add a new photo album on my joomla website using Joomgallery and it is giving me this error message :

"Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.
Apache Server at submissionfc.com Port 80"

What does this mean???

 

i thing thats have some config or permission mismatch kindly check folder permission

 

Oh, you've got an error with folder permission in your joomla folder installation,
did you fix it?

 

Check your apache configuration. In most cases wrong apache configuration is causing this error.

 

Try this. Login as root, the do this CHMOD 777 -R /path/to/joomla

see if that fixes the error, if it does run these two commands to reset the permissions. (must run from the directory your joomla is installed in)

find . -type f -exec chmod 644 {} \;
find . -type d -exec chmod 755 {} \;

 

can you please check mod_rewrite is "on" on your server?