meteohub.de

I am running meteohub v 4.7o on an ALIX.3D2. I noticed that my data storage is full. When data storage is full does meteohub automatically delete the older data? I use Weather Display software and I noticed that if I have it shut down for a while then restart it I don't receive any of the data recorded while it was shut down. It does receive data while the program is running. If meteohub doesn't overwrite old data automatically is there a way to delete the older data that I've already downloaded? Thank you.