najiang has requested that the connection to the database in zenko be closed after each request as it is causing problems on the backend. This was mentioned in a github issue here: https://github.com/matthewruttley/zenko/issues/1 He says "In Zenko, all database queries are executed via two global connections/cursors. That might unnecessarily hold the connection resources and prevent other applications from accessing the database. Better localize the connection usage, like create a new connection while executing a new query, and close it immediately once you're done using this connection. " I think this can be fixed by abstracting all queries to a specific querying function.