Data Not Loading from Flat Files

I have a package , in the package i'm using a 4 look ups, but after the first look up when it comes to the second look up all the records are loaded into the data exception table with the message that the ID is not found. I checked the lookup table as well as the values in the flat file and the lookup table and they both match but still i'm not sure why the data is not getting loaded into the destination table. Please need help! I'm getting the error message  Error Code:-1071607778 which translates to

Thanks