MD5 Checksum issue

Hello

I’ve had Loginizer for a while and it’s sat in the background not doing much. But on 6 August I had an email to say that there was a checksum mismatch on my staging site.

The following files have been found that do not match the MD5 checksums as per your version :
Path: wp-includes/functions.php
Expected MD5: 0364dda28fc8eec5ed3c556b394d9f02
Found MD5: ae336c36acb7e3276bebcaf50a26195a

What am I meant to do? I’ve had a look at the support documents and it shows me the settings for Checksums, but not what I’m meant to do when there’s an issue.

Can someone advise?

thanks