I cannot access my admin page

go to your activated theme directory and edit functions.php file and make sure there are no spaces at the top or bottom

@kolka
Thank you for your kind response..
But could you please explain how shall I go to activated theme directory and edit the function.php?
It would be helpful if you can let me know it…..

from dashboard go to appearance -> editor -> functions.php from right side , now you can see it’s all code in editor screen

@kolka
but I cannot login to dashboard and I cannot gain access to my website as admin. the admin login page is just a white blank page.

login by FTP and go to wp-content->themes->your activated theme->functions.php

@kolka
Ok I will try it.. And thank you so much for your responses..

@kolka
Sorry to trouble you again..
It did not work
What else can be done?

ok so try another one, rename your plugin folder name that is under wp-config folder. then go https://natanamysore.com/wp-admin/

and before that problem what exactly work you have done?

Thank you Kolka..
It worked..!
and now I can access.. Thank you SO much

most welcome!
but i f you have changed your plugin folder name, now all plugins are disabled. so find out the plugin that did your admin page blank and remove it after that rename plugin folder name with old name (plugins).