How to remove product and repositories that failed to create completely?

Using Red Hat Satellite 6.2.8, I have an issue currently where I created a
Product and then added 2 repositories through Repo Discovery. When I went
to sync them the sync's failed with errors, presumably because the
repositories themselves where not completed created.
I see the following error on the sync tasks:

Required lock is already taken by other running tasks.
> Please inspect their state, fix their errors and resume them.
> Required lock: read
> Conflicts with tasks:
> -
> https://rhs1.example.com/foreman_tasks/tasks/2a68a7db-4f68-49ac-802e-79e5c6744113

Required lock is already taken by other running tasks.
> Please inspect their state, fix their errors and resume them.
> Required lock: read
> Conflicts with tasks:
> -
> https://rhs1.example.com/foreman_tasks/tasks/99bdfefa-a82d-46f4-ac7c-7f0967007c18

If I look at that task it is in a paused state and I cannot cancel it and
trying to resume it just goes back to paused state:

> foreman=# select * FROM foreman_tasks_tasks where
> id='2a68a7db-4f68-49ac-802e-79e5c6744113';
> id | type |
> label | started_at | ended_at |
> state | result | external_id | parent_task_id |
> start_at | start_before
>
> --------------------------------------±--------------------------------±-------------------------------------±--------------------±---------±-------±-------±-------------------------------------±---------------±---------------------------±-------------
> 2a68a7db-4f68-49ac-802e-79e5c6744113 | ForemanTasks::Task::DynflowTask |
> Actions::Katello::Repository::Create | 2017-03-15 19:49:50 | |
> paused | error | dbd15068-0539-4ca1-a7ca-08a74ed81444 | |
> 2017-03-15 19:49:50.758137 |
> (1 row)

foreman=# select * FROM foreman_tasks_tasks where
> id='99bdfefa-a82d-46f4-ac7c-7f0967007c18';
> id | type |
> label | started_at | ended_at |
> state | result | external_id | parent_task_id |
> start_at | start_before
>
> --------------------------------------±--------------------------------±-------------------------------------±--------------------±---------±-------±-------±-------------------------------------±---------------±--------------------------±-------------
> 99bdfefa-a82d-46f4-ac7c-7f0967007c18 | ForemanTasks::Task::DynflowTask |
> Actions::Katello::Repository::Create | 2017-03-15 19:48:32 | |
> paused | error | 3d7f7435-61dc-4c35-bb12-1cae95a703cb | |
> 2017-03-15 19:48:32.83793 |
> (1 row)

In the Web UI the Error for the Create repository tasks are as follows:
For Id: 2a68a7db-4f68-49ac-802e-79e5c6744113

> Runtime Error RESTEASY001185: Could not find resource for relative :
> /products//content/1489607391328 of full path:
> https://localhost:8443/candlepin/products//content/1489607391328?enabled=true
> at org.jboss.resteasy.core.registry.PathParamSegment.matchPattern:209

For Id: 99bdfefa-a82d-46f4-ac7c-7f0967007c18

> Runtime Error RESTEASY001185: Could not find resource for relative :
> /products//content/1489607313455 of full path:
> https://localhost:8443/candlepin/products//content/1489607313455?enabled=true
> at org.jboss.resteasy.core.registry.PathParamSegment.matchPattern:209

I was looking in the candlepin database for the product content
numbers 1489607391328 and 1489607313455 but could not find them. The
product appears in the cp_product table with id 1489607052722 but a
select * from cp_product_content where product_id='1489607052722'; yields
no rows.

I cannot resume the tasks, cancel them, or delete the repositories or
product (at least not from the Web UI).

Anyone have suggestions as to what I might do or what else to look at in
order to either fully create the repositories or remove them?

thanks,