KHTTPS_ERROR : 0, 13

Hi,
I am using HL6528x modem.
I tried to send some data to the server using https commands.But i am always getting +KHTTPS_ERROR : 0, 13(SSL initilization error).
Below are the commands i used to sent the data.
AT+CGATT=1

the time of the module is correctly (AT+CCLK).
Here i get
+KHTTPS_ERROR : 0, 13

Can you help me ?

hi,
can you share your AT log.
also can you check you stored the certificates properly.

Thanks,
Alex