Screenshot upload issue & thoughts about demos.

There was an issue that occurred the few recent days, screenshots were not properly uploaded.
This was due to the servers storage being full. Demos take a big part of the storage.
That's why I have delete any demo that is older than 2 month, 88 GB of demos deleted.

I will implement an automatic job so that any demo older than X days will be automatically deleted.
X will be dependent on other things.
Keep MOHAA Alive.