Im writing to activate warcraft logs

[MissCheetah-1661]

This is not the proper place to be posting for that. Many have made that mistake so you are not alone. There is a post here explaining it all.

Claim Character for Warcraft Logs

You need to go to the World of Warcraft Classic forum - like it says. Then go to your forum Profile at the top right of the web page on that forum. Click your picture and select the option to change characters to the one you want to have the API pick up.