error after i changes a gregtech recipe

[sovereign2185]

i am running ftb ultimate and i changed a recipe and now its says i have world id mismatches for id 4092, 4093, 4094, 4095 for blocks ores and lead

 

[sovereign2185]

2013-04-30 19:06:09 [SEVERE] [fml.ItemTracker] FML has detected item discrepancies
2013-04-30 19:06:09 [SEVERE] [fml.ItemTracker] Missing items : {4091=Item 4091, Type gregtechmod.common.items.GT_MetaBlock2_Item, owned by GregTech_Addon, ordinal 0, name GT_LeadBlock, claimedModId GregTech_Addon, 4092=Item 4092, Type gregtechmod.common.blocks.GT_Block_LightSource, owned by GregTech_Addon, ordinal 0, name GT_TransparentTileEntity, claimedModId GregTech_Addon, 4093=Item 4093, Type gregtechmod.common.items.GT_MetaOre_Item, owned by GregTech_Addon, ordinal 0, name GT_Ore, claimedModId GregTech_Addon, 4094=Item 4094, Type gregtechmod.common.items.GT_MetaMachine_Item, owned by GregTech_Addon, ordinal 0, name GT_BUG, claimedModId GregTech_Addon, 4095=Item 4095, Type gregtechmod.common.items.GT_MetaBlock_Item, owned by GregTech_Addon, ordinal 0, name GT_Block, claimedModId GregTech_Addon}
2013-04-30 19:06:09 [SEVERE] [fml.ItemTracker] Mismatched items : {}