Help – Homepage not working with Custom Permalinks

Hello,
I have always used the custom permalinks I need with my site, like this: “/%category%/%year%/%monthnum%/%day%/%postname%/”.

This still for everything but my static homepage now. It was working fine with the same structure until lately. But I now get a “Problem loading homepage” message.

The only way the homepage loads is if I change permalinks to the default permalink structure.

What’s going on and how do I fix this? Thanks.