Can't publish a scenario

[ThirnCZ 0]

Hi, 

Yesterday I tried to publish my mission to workshop but I couldn't do that because my space "bar" was red.

It says that I need more space, but even if I delete 10 old missions and gain more MB free, space requirement gets higher so bar is still red..

I'm playing arma for a while now (1500 hours +) and I never saw anything like that anywhere.. 

if you know solution, please help me