inascon → created an issue.
Neither of the patches worked for me. Attached a patch I now use which solves the problem for me.
I hope this helps to solves the problem.
I had the same problem and got the following error:
PHP Fatal error: Declaration of Drupal\panels_ipe\Form\PanelsIPEBlockContentForm::actions(array $form, Drupal\Core\Form\FormStateInterface $form_state) must be compatible with Drupal\block_content\BlockContentForm::actions(array $form, Drupal\Core\Form\FormStateInterface $form_state): array in /Library/WebServer/Documents/dedicon-vookam/web/modules/contrib/panels/panels_ipe/src/Form/PanelsIPEBlockContentForm.php on line 18
So fixing the function declaration solved the problem for me.
INAScon → created an issue.
Missing the explanation of route parameters and weight.
Besides the reported error message, we also see that the session ID no longer exists after payment has been completed. Having no session ID makes it impossible to create an account after payment (related to the completed order), which is an issue on the 30+ webshops we manage.
This is an urgent issue for us. Is there anything I can do to help fix this issue?