If i try the Example file " Datalogger " it works well, until
the values are not higher then 99.
You compiled, linked, and uploaded some code. Whether that was an example or not is irrelevant. We need to see that code. We need to know what you have connected to the Arduino that is providing these numbers that are or are not higher than 99 and are or are not causing problems.
the second problem on I2C the level of SCL is ok the Level of SDA goes not low enough.
And you know this how? What I2C device are you talking to?