knowledge base, an error message appears stating, "We are unable to load this page."

[Dastagir]

When attempting to enable the knowledge base, an error message appears stating, "We are unable to load this page. You might not be signed into the correct account 

[Eugenio Onofre]

Hi @Dastagir

Welcome to the Atlassian Community.

This feature is only available on Standard, Premium and Enterprise plans and require a Confluence subscription.

Please remember to accept this answer in case it helps you resolve your question as it may also help other community members in the future.

Regards,
Eugenio