Cannot change/view birthday on profiles

[IEvo]

Hi all, I'm extremely sure it's the theme I'm using but I've spent hours upon hours customizing it to my liking so I'd prefer to keep it and try and find a fix to my issue if possible.

Basically when I go to my profile page and click 'Edit Profile' my birthday doesn't appear correctly and I cannot change any of the values.

Here is an example:

Would any of you know where to even begin finding the issue? I checked the database and manually changed my birthday but it still had no luck.

[IEvo]

EDIT: Seems to be something with the rules automation plugin.