The death toll from floods and cold lava mudflows in Indonesia’s West Sumatra province has climbed to 58, the country’s disaster management agency said Wednesday. Intense monsoon rains triggered flash floods across several regions of West Sumatra over the weekend, as cold lava and mudflows from Mount Marapi surged down slopes and inundated communities, officials said. Thirty-five people are still missing, 33 have been injured and more than 1,500 families have been affected, according to the agency. Cold lava floods, also known as lahars, are volcanic mudflows that can occur during or after eru…