A shield was activated that disrupts any ki within its radius. Therefore:
No ki attacks may be used on or around the Juin Continent. No one can teleport to the Juin Continent. No one can fly around at the Juin Continent.
Because of their kinetic armor, which efficiently regulates ki, the Juin soldiers are mostly immune to its effects. More on the shield will come in the Juin Saga.
Additionally, only the following may post here until further notice: Keiji, Phalluce, and Neojiisu. All other fighters have been kicked out onto the nearest continent.