stm32f030 i2c not working.

Hello there,
I am new to arm, I'm working with the svm30 sensor to get the value to the stm32f030 custom board.
transmitting is happening but while on receiving, when I'm checking the registers its updating on click else its not updating.
the issue is with the receiver end..
Can anyone help me to find out what iu have done wrong?

attaching the i2c.c file having the init function and the sensor code....

thanks and regards..
Shubhanshu