I use MySQL connectorl and after some time it stops. PLEASE HELP

[César Sebastián Silva Proaño]

Dear gentlemen of the MySQL forum I hope you can help me with this problem

I am using an arduino atmega2560, a wifi shield and a dust sensor (dsm501a) for a project. I have to translate the measurements from my sensor to a mysql data base. I used the mySQL connector created by Dr. Charles Bell. When I see that the blue DATA led of the wifi shield blinks it is because the data is being translated from the sensor to the mySQL data base. Everything is working fine but suddenly at one point (sometimes 1 hour, sometimes 30 minutes) it stops blinking, my serial monitor paralyzes and no more data is transmitted. Could you please help me? What do I have to do? Do I need to add something in my code? This system is supposed to work 24 hours and the whole time saving the measurements from the sensor therefore it cannot stop.
Please I hope you can help me.
Best regards,
Sebastian Silva P.