When "Gallery 3", the first item on the "Image Galleries" list, is installed and completes without any errors, you are presented with 2 links. Clicking on either link will result in a completely BLANK page (NO text).
One must remove then remove both the .htaccess file and the php.ini file to get this installation to even function.
Not sure if this is a Softaculous issue or a "Gallery 3" issue, but thought you should know.
Sir, we have tested Gallery on our test servers and it works fine. This must be some misconfiguration with your server.
Can you please open a support ticket with test account details we will check it and resolve this.