DSL connection not working anymore

Since yesterday my DSL connection is not available anymore. The DSL light is off and the LAN light is flickering on the router. From the last post I made (https://hilfe.o2online.de/thread/226559-contact-problem-dslinternet ) I assumed the problem was solved by adding my information to my account.

I don't know if it's just a temporary outage or if everything got canceled. I don't need the internet for much longer (till 22nd of June) so it will have to be canceled soon, but having it for a month longer would be nice.