The issue you are facing likely stems from a firewall restriction your workplace has set up. Please have your IT department take a look at this page on how to allow/whitelist for Vooks videos to play and let me know if you need further assistance. https://vooks.zendesk.com/hc/en-us/articles/360036066592-Firewall-Whitelist
If you prefer, we can work with your IT staff instead. Please have them contact us at firstname.lastname@example.org and we'll work with them to solve this issue.
Once the domains have been whitelisted/allowed, then you should be able to complete the setup of your account.
If you continue to experience these issues after implementing these solutions, please let us know!