Fatal G2 error

Here's the error from G2: Error (ERROR_STORAGE_FAILURE)

in modules/core/classes/GalleryStorage/DatabaseStorage.class at line 253 (GalleryStatus::error)
in modules/core/classes/GalleryStorage/DatabaseStorage.class at line 210 (DatabaseStorage::_getConnection)
in modules/core/classes/GalleryStorage.class at line 237 (DatabaseStorage::init)
in modules/core/classes/Gallery.class at line 223 (GalleryStorage::search)
in modules/core/classes/helpers/GalleryPluginHelper_simple.class at line 300 (Gallery::search)
in modules/core/classes/helpers/GalleryPluginHelper_simple.class at line 241 (GalleryPluginHelper_simple::fetchAllParameters)
in modules/core/classes/GalleryCoreApi.class at line 216 (GalleryPluginHelper_simple::getParameter)
in modules/core/classes/GallerySession.class at line 246 (GalleryCoreApi::getPluginParameter)
in modules/core/classes/Gallery.class at line 323 (GallerySession::init)
in init.inc at line 116 (Gallery::initSession)
in modules/core/classes/GalleryEmbed.class at line 80
in /var/www/html/ff/wp-content/plugins/wp-gallery2/g2embed.php at line 141 (GalleryEmbed::init)
in /var/www/html/ff/wp-content/plugins/wp-gallery2/g2embed.php at line 175
in /var/www/html/ff/wp-gallery2.php at line 55