Thread: An error that I get when I attempt to run my server

when I run my server, i get this:

Code:

[Launcher] Initing Cache...
Exception in thread "main" java.lang.NullPointerException
        at com.rs.utils.Utils.getItemDefinitionsSize(Utils.java:268)
        at com.rs.cache.loaders.ItemsEquipIds.init(ItemsEquipIds.java:13)
        at com.rs.Launcher.main(Launcher.java:65)
Press any key to continue . . .

this is what's in my utils.java:

Code:

 public static final int getItemDefinitionsSize() {
                final Cache cache = new Cache();
                if (cache != null) {
                        int lastArchiveId = cache.STORE.getIndexes()[19].getLastArchiveId();
                        return (lastArchiveId * 256 + Cache.STORE.getIndexes()[19]
                                        .getValidFilesCount(lastArchiveId)) - 22314;
                } else {
                        System.out.println("Cache is null");
                }
        }

This is whats in my itemsequipids.java:

Code:

public static final void init() {
		int equipId = 0;
		for (int itemId = 0; itemId < Utils.getItemDefinitionsSize(); itemId++) {
			ItemDefinitions def = ItemDefinitions
					.getItemDefinitions(itemId);
			if (def.getMaleWornModelId1() >= 0 || def.getFemaleWornModelId1() >= 0) 
				equipIds.put(itemId, equipId++);
		}
	}

And this is what's on line 65 of my launcher.java:

Code:

ItemsEquipIds.init();

What shall I do?