Without stacktrace / server.log it would be hard to tell what is going on.
I don't know exactly what was a problem, but I compared my ear with the older one that worked and I noticed that in \spiro-web.war\WEB-INF\lib\ i have
But in new one I had in \spiro-web.war\WEB-INF\lib\ :
I kept only bootstrap-1.0.10.jar because the other files are in spiro-ear.ear\lib.
Now it works.
Thanks for reply.