Confusing error message for members not added to an H2

## Issue Description

"Agency" H2s do not have access error message is confusing. It states I am not logged in and it's rather I do not have the permissions.

## Steps to reproduce:
1. Open any of the below urls as a non-added user
https://agency.hmn.md/2022/05/18/agency-day-retreat/
https://agency.hmn.md/2022/05/19/leadership-behaviours-workshop/
2. You will see the following error message:

## Expected Result:
The message should state something in the lines of "You do not have the correct permissions please get in touch with..."