There seems to be an issue with older versions of eCatcher, versions < 6.3.5 where they are not reaching the access server. This prevents eCatcher from authenticating and you are not able to login.
You can resolve the issue by updating to the latest version of eCatcher available from the software support page. https://websupport.ewon.biz/support/product/download-zone/all-software
If you have any questions please post a response to this post so that we can address it.