Most of the time when you get a "repository" not found in log4net it usually means log4net is not configured properly (from what I have found anyways).
If you have not done this already in the log4net.config file make sure that the connection string matches what is in your web.config. The value attribute should be the same as the connectionString attribute of the web.config.
If you have not done this already in the log4net.config file make sure that the connection string matches what is in your web.config. The value attribute should be the same as the connectionString attribute of the web.config.
<connectionString value="Data Source=.\SQL2008;Database=BugNET;Integrated Security=True;" />
You can also try this config (comment out the connectionString element)<connectionStringName value="BugNET" />