Is there any way that a mod could unlock my and my coop friends chests because we recently changed our names and now we cant open our chests.

 

Im guessing this is for net. You can ask any online mod with a red or dark red [Mod] tag to remove your locks

 

Remember you need to:
1) Be online NET
2) /msg a Red or Dark Red Mod
3) If they locate your island, make a bed there and sleep there
4) Note down the coords of ur island, so you can be TP'ed there easily if something happened to ur bed
5) Get the mods to break the signs on your chest and then replace them ASAP with signs of ur new name
6) You can do /homes in the future to get back to your island while the server gets upgraded to 1.8