How to remove friend's account from my phone?

[AC Question]

my friend had used my phone to play Clash of Clans using his account. after that, i logged onto my account and started playing. But now, i keep getting error notifications asking me to log in to my friend's account. How can i stop those notifications? or how can i remove my friend's account? i checked in the device setting>account and only my accounts are there.
Thanks in advance.

 

[sonic63]

Just sign into yours through Google play its like you switch accts by clearing the data and force stopping it but internally with the settings in the game

Sonic63

 

[sonic63]

Oops didn't fully read it lmao my bad xD

Sonic63