Can’t manage to translate something in registration

That must be coming from another plugin, as the official WP message is:

<strong>Error</strong>: This email is already registered. Please choose another one.

Hello @jfarthing84 !

Thank you for your reply. I don’t know which other plugin this could be coming from, since this is the only plugin that I’m using that effects login/register pages.. The exact message that I’m getting is

This email address is already registered. Log in with this address or choose another one.

Update: I also tried disabling all the other plugins, except Theme My Login, and the same message appears. Another thing I noticed is that when you try to register, if you don’t use the same password, you get the error message

Error: Passwords don't match. Please enter the same password in both password fields.

I translated that error in Loco Translate and it doesn’t translate it. I tried translating it in functions.php using

function translate_strings($translated) {
	$translated = str_ireplace('Passwords don’t match. Please enter the same password in both password fields.', 'Gesli se ne ujemata. Prosimo, vnesite isto geslo v oba polja.', $translated);
		return $translated;
}

And it still doesn’t change for some reason, so there’s something weird going on here.

Kind regards

The full “passwords don’t match string is here:

<strong>Error</strong>: Passwords don’t match. Please enter the same password in both password fields.

Note that the apostrophe is actually “& #8217;” (with no space).

The “email address is already registered” message, I was able to locate within WooCommerce.