labfolder strives to provide the most convenient experience for users, concurrent software updates require you to run labfolder on a modern browser. Please check whether you are using an up-to-date browser which is supported by labfolder, please visit the links provided.
If you still encounter problems with loading content or logging in, refreshing your cache will solve the problem in most cases. In order to see how to clear your cache, you can have a look at the browser-specific instructions on this website: http://www.refreshyourcache.com/en/home/. After clearing your cache, you need to reload the labfolder page, and logging in or loading should now work. IMPORTANT: Please save any unsaved data in labfolder or other browser applications before clearing the cache!