2812 RXERROR?

hi, everyone! Recently, i try to use a SCI Receive interrupt to receive a serie of words. However, everytime i start the power, it shows an RXERROR. To avoid the interruption during the power-on, i add the sci reset funtion before the main loop begins. But it still doesn't work. Any ideas on how the RXERROR showing again and again and how i can avoid this problem (hardware or software )?

Thank you all,

alex