Seems I can't upload anymore unless I clean up my sta.sh or buy core membership again. That might take a while, if ever....
Since core membership increases sta.sh storage capacity to 10 GB I have used up almost 7 GB. Now it's back to 2 GB. And I cannot upload any photo, even directly, unless I get this under 2 GB again. Renewing core membership is another alternative, but I simply do not agree with the pricing anymore.