I've uploaded the phpbb3 files to the public_html and install it manually. I can go to the Final Stage nicely, but then after I press the login button, I got this error:
SQL ERROR [ mysqli ]
Server shutdown in progress 
SELECT image_name, image_filename, image_lang, image_height, image_width FROM phpbb_styles_imageset_data WHERE imageset_id = 1 AND image_filename <> '' AND image_lang IN ('en', '')
After that I tried to access directly to the domain to check again, and I got this message:
Please delete, move or rename the install directory before you use your board. If this directory is still present, only the Administration Control Panel (ACP) will be accessible.
I wanted to try using fantastico at the first time, but looks like the fantastico only for premium member now, so I really need your help to guide me solving this problem guys.
Thanks in advance.