Reply To: Activity stream WP dashboard empty
my apologies for not replying faster.
Its all good.
Since I see you do not have a VPS already when using BuddyPress, you may not have enough memory at all on your current plan.
Having VPS hosting or better is usually recommended if you are going to use BuddyPress. But I guess a small community should be able to handle something like shared hosting.
As a test and since the error is related to the Activity component in BuddyPress, you can just try disabling the component in BuddyPress to see if the error disappears.
For the second error you are getting, hopefully you are not trying to edit the BuddyPress plugin and causing more issues.
You can also try reinstalling BuddyPress as a last resort to see if that would resolve any issues.