I am seeing error messages like this:
Warning: Undefined array key "null" in Drupal\purge\Plugin\Purge\Queue\QueueService->getLabel() (line 370 of /…/purge/src/Plugin/Purge/Queue/QueueService.php).
The error is on this line:
return $this->getPlugins()[current($this->getPluginsEnabled())]['label'];
There is not protection against $this->getPluginsEnabled() returning an empty value.
Similar code exists in ::getDescription().
I see this every time I load admin/config/development/performance/purge.
Provide a fallback to avoid the error or a mechanism to ensure that $this->getPluginsEnabled() does not return empty.
Figure out what is wrong. Implement.
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Active
3.0
Code
The change in the merge request does remove the error messages and provide fallback text. I'm not sure if this is a good solution or not. The string would need to be translated.