Not suppose to build in chunk

This is the code:

Code:java

 @EventHandler(priority = EventPriority.LOW)
public void onBlockPlace(BlockPlaceEvent evt) {
CacheEvent cacheEvent = sC.getCacheEvent();
if (cacheEvent == null || !cacheEvent.isActive()) {
return;
}
Chunk eventChunk = cacheEvent.getEventChunk();
Chunk chunk = evt.getBlock().getChunk();
if (chunk == eventChunk) {
evt.setCancelled(true);
evt.getPlayer().sendMessage(String.format(StarCache.chatFormat, "You cannot place blocks in the StarCache's chunk."));
}
}

You're not suppose to be able to build in the chunk of the starcache but you can, not sure what the issue is.
This works:

Code:java

 @EventHandler(priority = EventPriority.LOW)
public void onBlockBreak(BlockBreakEvent evt) {
CacheEvent cacheEvent = sC.getCacheEvent();
if (cacheEvent == null || !cacheEvent.isActive()) {
return;
}
Block evtBlock = evt.getBlock();
if (evtBlock.equals(cacheEvent.getStarCache())) {
evt.setCancelled(true);
evt.getPlayer().sendMessage(String.format(StarCache.chatFormat, "You cannot break the StarCache."));
}
}

That makes it so you can't break the chest it's self.
Can someone please help asap?
The chunkevent works because the chest spawns in the correct chunk.