I have 2 transaction which are not getting confirmed.

https://blockchain.info/tx/15f21b3a29d1cc91c8d2121b5a72c928f284023de53d49130e360ab2c1c8551c

https://blockchain.info/tx/48df837926aaa897a10d40ee2ca8d2d88044fef1107632f739113112e8134f69

is this blockchain problem or something else??

this transaction too-

https://blockchain.info/tx/39a22fc47e879d16a307b3cb3cc1a742fa35daabb7d25ea079ce396a5e6b041f


Plz help!!