Driver problem!

[Pedro Miguel Pereira]

Hi there!
I have WAS 3.02 on WinNT.
After running WAS 3.02 for one day it stops running properly and the
database connection stops working.
The errors in th standard_output are:

110.870 2018e04 WebApp X
Error.occurred.while.invoking.error.reporter
com.ibm.servlet.engine.webapp.WebAppErrorReport:
[ServTest.InicialServlet] relatou um erro
at
com.ibm.servlet.engine.webapp.WebAppDispatcherResponse.sendError(WebAppDispatcherContext.java:240)
at
com.ibm.servlet.engine.webapp.WebAppDispatcherResponse.sendError(WebAppDispatcherContext.java:219)
...


com.ibm.servlet.engine.webapp.NoTargetForURIException: No target servlet
configured for uri: /
at
com.ibm.servlet.engine.webapp.WebAppRequestDispatcherInfo.getTargetServlet(WebApp.java:1325)
at
com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebApp.java:1064)
...

111.130 2018e04 WebGroup A [Servlet.LOG]:."A recursive error was
detected.The server cannot use specified error page. Please check the
application error-path."
111.190 2018e04 WebGroup A [Servlet.LOG]:."Original Error:
":.com.ibm.servlet.engine.webapp.WebAppErrorReport:
[ServTest.InicialServlet] relatou um erro
at
com.ibm.servlet.engine.webapp.WebAppDispatcherResponse.sendError(WebAppDispatcherContext.java:240)
at
com.ibm.servlet.engine.webapp.WebAppDispatcherResponse.sendError(WebAppDispatcherContext.java:219)
at
com.ibm.servlet.engine.webapp.WebAppDispatcherResponse.sendRedirect(WebAppDispatcherContext.java:203)
at ServTest.InicialServlet.makeFrames(InicialServlet.java)
...

8460.916 2018e0c WebGroup A [Servlet.LOG]:."Recursive Error:
":.com.ibm.servlet.engine.webapp.WebAppErrorReport: No target servlet
configured for uri: /
at com.ibm.servlet.engine.webapp.WebApp.sendError(WebApp.java:510)
...
SQL State: HY000
Internal driver error.
...

I was planning on changing from WAS 2.0 to 3.02 but it seems that is not
very stable.
Another question is: Is it necessary to add all the drivers in the
console and then install them. I'm using JDBC.odbc drivers. do I need to
add them too?
Thanx
Pedro Pereira