Did your try to update PHP to version 7.4, or 8.0. or 8.1 and your website goes down with an http error 500 and the following message? Please follow the instructions below to fix this error:
Category: Troubleshooting
Fix: Call to undefined function get allowed block template part areas()
After updating to latest WordPress version 5.9 it can happen that you get a blank white page or a fatal error saying something like: [26-Jan-2022 15:52:28 UTC] PHP Fatal error: Uncaught Error: Call to undefined function get_allowed_block_template_part_areas() in /home/web/public_html/new/wp-includes/blocks/template-part.php:168 If you only get a white page without seeing anything, you can verify this error by … Continue reading “Fix: Call to undefined function get allowed block template part areas()”