Hello Eric. I notice that you are in Germany and I understand that the people hosting Moodle in Bavaria (where I believe you are) Mebis (not connected to the people who make the Moodle software) are having problems at the moment. Hopefully they will resolve it soon.
General help
Moodle is not working at all
ການສົນທະນາຖືກລັອກ ດັ່ງນັ້ນ ທ່ານບໍ່ມາສາດຕອບກັບມັນ.