[Plugin: NextGEN Gallery] Backend invisible

Maybe we can arrange for one of your reps to have a look inside the installation to speed things up.

Also my options screen are totally blank.
I created my albums and galleries but when you want to add them into your page, anything appears within the options.
Very disappointed as this plugin seemed really the best.

I’ve disabled all plugins, re-enabled Nextgen, reset it’s settings: still nothing. In console I see the following errors when I try to open the Add Gallery/images page: ‘ReferenceError: jQuery is not defined’ (in https://www.domain.com/wp-admin/load-scripts.php?c=0&load=utils,jquery-ui-widget,jquery-ui-position,wp-pointer,jquery-ui-core,plupload,plupload-html5,plupload-flash,plupload-silverlight,plupload-html4,jquery-ui-datepicker&ver=3.4.1

and ‘TypeError: $(“#wp-admin-bar-ngg-menu”).pointer is not a function’ in https://www.domain.com/wp-content/plugins/nextgen-gallery/admin/js/ngg_news_notice.js?ver=3.4.1

whereas ‘domain.com’ can be replaced with my development location. Switching from my active template to the default brings back the Upload dialog. Im suspecting my theme, and will investigate further.

I also reinstalled WP but that does not resolve this issue. Please help, as this is quickly becoming a showstopper for my client. I have also seen similar threads in the forums.

As it turns out, this was caused by a theme using a nonstandard way of including jquery. As it was enqueued in header and functions, it got loaded twice, causing all kinds of mayhem. Removing jquery from functions solved it.