Abi15

Hello I am using Moto G4. For the past 2 months I keep getting ad pop ups in my mobile. I removed all the recently installed aps. I even ran a scan with malwarbytes app but it dint show any issues. I get this ad pop up especially when I use Watsapp, Duo and mostly not with Chrome. Sometimes I get these pop ups during idle time and when I am in call also. Please help me resolve this issue. Regards, Abisheik.P