Arduino YUN / IO Expansion Shield V7.1

Hello,
I'm new to this forum because it is the rst time I meet a problemme with df bouckier.

I use a yun with the I / O shield V7:

5 Ground humidity sensor (analog: A0, A1, A2, A3, A4)
2 temperature humidity sensors (DHT22: D4, D5)
2 day / night sensor (D2, D3)
1 light sensor (A5)

4 Magnetic relay (D12 D11 D10 D9)

The problem happens when I want to use a dial clock 1307.
Because it uses port I2C communication nothing works or just the clock.

Is it a problem of conflict between the exit of the yun that are different from the uno.
Or that I have not enough power 5v for everyone (I supplies current to the usb yun).
may have simultaneously supplying the shield (5v and ground) and yun (V USB).

I did some tests by deflecting the SDA and SCL pin to connect the shield dfrobot on yun. I so happen to have a communication with all but the DHT22 sensor gives crazy values.

If I connect another clock using the SPI comminication I have the same problem?