Hi, Thank you for your message and for sharing the details.

1️⃣ “You must call ‘the_content’ function” error:
If you’re seeing this message on a portfolio page, please make sure that the Portfolio module is activated from your theme settings — Elementor needs that section enabled to edit the portfolio template correctly.
If the error appears on a blog page, you can go to Appearance → Customize and update the Blog or Portfolio section with the default preset layout. This refreshes the assigned template and usually resolves the issue right away.

2️⃣ Dark mode issue:
When enabling dark mode, the background turns black but some text may remain dark as well. We’ll review the color styling to ensure text and links display correctly in dark mode.

If you’d like us to check this directly on your site, please leave your temporary WordPress admin credentials in the Private Content box below — we’ll inspect the template settings and dark mode styles and provide a quick fix.

Thank you for your patience and cooperation!

Best regards,
Serkan