I am currently using k2 component for Joomla. I have been able to fix alot of issues using this community.
However, the issue i am currently facing is a bit frustrating, when allowing a user to edit own item, the site owner can not edit it. On the other hand, when user is not allowed to edit own item, user gets "403 - You are not authorised to view this resource." error upon submitting.

Please advise urgently !

Thanks

Make sure to add the Joomla admin account to the site owner group in K2. From that point on, newly submitted items will be editable by the administrator, however previously submitted items will still appear locked until you modify those items directly at the database level.