Translate login.php after update Boldial theme

Hello,

Since the last update of Boldial I my login.php is no longer translated to dutch. The .po and .mo files of the PA Login and access plugin are installed and wil appear as soon as you press “login” button without a login name and password, but the text of the login screen is always in English. The nl_NL files for Boldial are also installed and WordPress is also in Dutch. Before de Update it was ok. The rest of the .php pages are translated again because i don’t know how to use the Child theme well…(-;

Do you have any idea how I can translate the login.php again in Dutch?

Thanks in advance!