If you want to better understand the level of incompetence of Serbian authoritarian regime, you should know that they let the domain of their party, SNS.rs, expire. Somebody took it and it now displays "Your hands are bloody", the message behind the protests.
And this is the second time that somebody "stole" their domain in the last three months.
Here's a screenshot, because shortly after the site was published, RNIDS, the Serbian domain registrar took it down, without any valid legal reason. Now it is up again, but just in case of another attempt at censorship, I saved a screenshot.