An Arkansas Amber Alert has been issued for 16-year-old Autumn Lyon from Mineral Springs after she went missing with a 30-year-old man she met online, officials say. Anyone with information is urged to call 911 immediately. Autumn was last seen on Wednesday and reported missing on Saturday, according to the amber alert, which was issued on Monday night. Specific details about the circumstances of her disappearance were not immediately released. The suspect has been identified as Adrian Garces, a 30-year-old man from Weslaco, Texas. He’s believed to have taken the girl in a gray Ford F150 pick-…