There's also some sort of ban in place in my home country of Germany. I think there's technically no ban, but people keep getting arrested for protesting regardless.
Germany has very strict laws against hate-speech and incitement of hatred ("Volkzverhetzung"), that would probably be the reason for people being arrested. For historic reasons.
Germany has a great deal to answer for the fate of modern day Palestinians. The most decisive factor next to Sykes Picot. They naturally have no interest in that debate.