i'll try it again...
older fg-version has the path to the folder "media" in the front of every category and a complete different table-structure in the settings table. in the table structure of the fg-version 2.1.0 we change this structure for a better handling and we change the path to the possible root directory as start directory in fg. root directory is (if you change no other folder in the fg-settings) media-directory.
every fg-section has a defined path to the start folder, in older fg-versions for example defined as /media/my_folder
. this path has to be changed in the module upgrade to /my_folder
(without /media in the front). myself and other users reports here a problem, if we use PHP 7.x and upgrade a older version of FG, the old path stay in the database and the FG search now for a path /media/media/my_folder
and this path doesnt exist. the first /media comes from the FG-Script automatically, the second /media is part of the defined path from the category settings
but: this problem comes only, if you upgrade a older version
and we think, it was solved in the actual version from download area
thats way i ask, are you sure, that the uninstall from the FG, deleted also the tables in your database. if not, its possible, that the FG-Script use the old settings with the wrong path.
(i know, that a lot of people delete the files and subfolder inside of the folder modules/foldergallery and upload then the new files from the actual version 2.1.0., because, the ZIP-File has more then 2Mb and its not possible to install the module via WB-install-routine. but this job via FTP doesnt delete or doesnt upgrade the database tables)
a complete different problem is, when you install the FG the first time and you know, you have no tables in your database (or empty tables without a category_path). if you have there a empty select box for the start folder in FG settings, its a PHP-Problem, maybe the same problem, that we solved in the latest version. i work locale and also online with the highest possible php-version, means : PHP > 7.0
so maybe the problem with the empty folder is only in PHP 5.6.
i remember, that the first version of FG 2.x works for me and the other testers under PHP 5.5.x and 5.6.x, but not under PHP 7.x, maybe the same problem in the other direction now
normalize, Luisehahne is the developer of the FG, but it looks for me, that i'm realy alone here in this weeks, dont know, whats happend. but i'll try, to rebuild your configuration and test with php 5.6 in the afternoon, if i'm coming back from the doc.