Fatal error: Uncaught Error: Non-static method GallerySetupUtilities::generateTextFileForDownload() cannot be called statically in /usr/share/gallery2/install/steps/AuthenticateStep.class:42 Stack trace: #0 /usr/share/gallery2/install/index.php(158): AuthenticateStep->processRequest() #1 {main} thrown in /usr/share/gallery2/install/steps/AuthenticateStep.class on line 42