how to change some text on login page

hi,

on the TML login page,
the title text: Log In,
action link text: Register
action link text: Forget password

How do I change those text? I tried changing “Log In” in the translation file, but it doesnt seem to change the title.

#: includes/class-theme-my-login-template.php:151
#: includes/class-theme-my-login.php:540 templates/login-form.php:28
msgid “Log In”
msgstr “Some thing else”

how can i change those text? thanks

https://www.ads-software.com/plugins/theme-my-login/