''Add group" does not work (in admin and regular)

Hello everyone,

when I clicked on the "add group" button, I just get an empty white page.

But it seems I have got the right address:

http://www.seedvibe.com/m/groups/browse/my&bx_groups_filter=add_group

Same goes for events, i have got this adress: http://www.seedvibe.com/m/events/browse/my&bx_events_filter=add_event

but an empty white page.

Could someone help me resolve this please?

Thank you

Niels

An empty page usually means that there is some error on the server side. 

You can investigate server logs for particular error, or just enable "display_errors" PHP settings to show error instead of an empty page.