sim module automatically sms and calls.

hello
i make sim 800l in my project.
I added a vibration sensor with a pir sensor.
gsm card automatically calls by sms.
and the sensors don’t work at all.
reading a text like this;
AT+CMGF=1
AT+CMGF=1
AT+CMGF=1
AT+CMGF=1
AT+CMGS="+*********"

but when I run any of the sensors alone it works properly.
I’m sorry for my bad english.