Solution:
1) Create a new folder on your desktop and name it e.g. "custom_bot_names".
2) Put the edited BotProfile.db file in the folder you created before.
3) Then go here: "..\Counter-Strike Source\bin".
4) Locate the vpk.exe file. Then drag the custom_bot_names folder from your desktop (that has the edited BotProfile.db file inside) and drop it on the vpk.exe file.
It will create a custom_bot_names.vpk file on your desktop. Take that file and put it here: "..\Counter-Strike Source\cstrike\custom"
5) Finally test it and report here if it worked.
is now working thank you silent sniper