As per the instructions, I uninstalled RSG2 and installed using the xip file. I get the following error when trying to install the newer version from 1.10.2 to 1.10.11:
Fatal error: Cannot redeclare rsgConfig::$displayBranding in /home/craughwe/public_html/administrator/components/com_rsgallery2/includes/config.class.php on line 80