Activity cleanup

How does the Cleanup work? I tryed setting the Activity Duration to "-2 DAYS" and waited 2 days but no activity was removed. Do I need to use "Click to Process" for the cleaningprocess to start?

When I use the "Click to Process" link I get a blank page with this:
Notice: Undefined offset: 507 in /libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 871 Notice: Trying to get property 'published' of non-object in /libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 871

How does the Cleanup work?

You either select from the durations available or provide one. It works backwards from the current date. So if you set -1 YEAR it will subtract and year from the current date and anything older than that should be deleted.

I tryed setting the Activity Duration to "-2 DAYS" and waited 2 days but no activity was removed.

It always works off UTC so it may not be exactly 2 days based off the datetime shown when viewing the activity on frontend.

Do I need to use "Click to Process" for the cleaningprocess to start?

Yes, the link must be used for the clean up to trigger. If you need it ran regularly typically you do so using a CRON task.

When I use the "Click to Process" link I get a blank page with this:
Notice: Undefined offset: 507 in /libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 871 Notice: Trying to get property 'published' of non-object in /libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 871

I'm not seeing any errors in my tests. That error means a call to a plugin is trying to be made that doesn't exist. Within CB > Plugin Management what plugin has an ID of 507?

I'm not seeing any errors in my tests. That error means a call to a plugin is trying to be made that doesn't exist. Within CB > Plugin Management what plugin has an ID of 507?

It's the CB Activity plugin that has id 507

Ensure CB Activity within CB > Plugin Management is Published and its Access is set to Public. For some reason it couldn't be accessed.

I tried it while logged in as super user in frontend, then it works! With no error message. It shows a blank webpage after clicking the link but I assume that's normal? I see that I have set the Activity plugin as access level - Registered. Maybe that's why?

It shows a blank webpage after clicking the link but I assume that's normal?

Yes, a blank page is normal. It's meant to be as lightweight of an operation as possible and primarily to be used with a CRON task.

I see that I have set the Activity plugin as access level - Registered. Maybe that's why?

Correct, that's why it was not working while logged out.