If you look at the biases.txt file you will see
4, Human, 0, 0, -10, -10, 10, 0, 0, 0, 0, 0, 0, 0, 0, -10, 0, 0, 10, -10, 10, 0, -10, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
22, Humans, 0, 0, -10, -10, 10, 0, 0, 0, 0, 0, 0, 0, 0, -10, 0, 0, 10, -10, 10, 0, -50, 0, 10, 5, -5, 0, -15, -5, 0, 10, 0, 0, 3, 0
If you want to remove Humans from the mod it is not a matter of deleting the line #22 as you need to make sure that you have a race number 22. You also can't rename all occourences of Humans to Human as you will then have 2 races called Human.
To remove Humans from the mod you need to replace every occurrence of Humans , not Human. So for example in biases.txt instead of deleting Humans from the file replace the word Humans with Ditakur to add the Ditakur to the mod.
Then go into the folders
characters
designTemplates
dialog
Policy
races
and make sure Humans in each folder...and in the files in that folder ....do not have the word Humans and have the new name eg Ditakur
Also if the test was lowercase keep as lowercase.....if it was upper case then use uppercase.... this can cause errors if you dont follow this rule.
If you can't see where your error is in the mod use the modding tool here
tm.asp?m=4030377