when I stopped tomcat and next started it again (Yestarday) I saw error message:
"HTTP Status 500 - java.security.KeyStoreException: problem accessing trust storejava.io.IOException: Invalid keystore format"
I tried to restore database, but without any positive result (for ex. database at 28.11.2013,30.11.2013, etc). It's strange, because Youtrack has worked very well since 15.11.2013.
How can I restore database backup?