Hello,
Sorry for the late reply,
I finally understood where the problem is coming from. This banner is actually not from a previous theme, but from Ezoic. It is an ad manager like ad sense, I signup to it and they are the ones who added this second cookie banner. Apparently I can manage the setting from my Ezoic account.
thanks for helping me anyway, I appreciate, have a lovely day 🙂
Hello @joecoyle, thank you for taking the time to assist me, I appreciate 🙂
Here is a screenshot of the first banner that I want to remove : https://prnt.sc/95iGnuBJklzm
And this one in the bottom left corner is the one I want to keep : https://prnt.sc/VfYL0TXOKFbK