In odoo i want to add a background image in template. but In live server ubuntu the image is not showing but in localhost the background image is showing properly. i dump the live server database in local but nothing happend live server background image is not showing. I can no find any issue. 

if anyone know please help me 

t-attf-style="background-image:url('/module_name/static/img/Certificate-Template.png'); background-size:2000px 1414px; width:2000px; height:1414px; padding: 445px 600px 20px 143px; margin-left: -4mm; font-family: roboto-regular; font-size: 28pt;">