Shortcode- Critical error

[beatricelucaci]

I need to troubleshoot a shortcode, but it gives me a critical error very quickly.

14:52:39 UTC] PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 206573568 bytes) in /home1/friscoro/public_html/fishingreport/wp-content/plugins/debug-this/inc/extensions.php on line 350
[19-May-2021 14:53:02 UTC] PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 174067712 bytes) in /home1/friscoro/public_html/fishingreport/wp-content/plugins/debug-this/inc/extensions.php on line 350

I’ve added a statement to my wp-config, but it didn’t help
define( 'WP_MAX_MEMORY_LIMIT' , '512M' );

If you press the top level “Debug This” button on the page preview, it gives you a page layout of all the elements. The shortcode I’m using does not show on that page at all even though I have 2 blocks with the same shortcode. A Shortcode block, and a Custom HTML block. Both just render the actual shortcode text on the preview page, but there is nothing when viewing it with Debug This.

https://wordpress.org/support/topic/shortcode-critical-error/