The Cloudburo Bots Platform is based on Websocket Technology and unfortunately there are some incompatibilities when you use the Internet Explorer in combination with out content delivery network provider.
I.e it could be that the loading of bots.cloudburo.net will not complete when accessing the site with an Internet Explorer.
You will see the following Warning on our login site
Please use the alternate URL provided in the link, which will bypass our content delivery network and works for Internet Explorer. We expect that this issue can be fixed in a future setup.