Error 500: Application error occurred during the request processing

Question

hello gurus!
One thing very strange happened to me, we have a PI 7.1 EP 1, I imported a file. tpz in the Enterprise Service Repository, exported from PI 7.1. and suddenly everything stopped working, the SLD, the SR, the directory, the repository .....
When we tried to access anything in the browser gives us:
Error 500: Application During The error occurred processing request.
The basic team, don`t  know the reason, they reset PI but is still not working
nothing.
Can you help please?
Thank you so much.

Answer 1

*Hello Luis,*
*I follow the instructions to do the export / import. Basic team, uptade version kernel and Netweaver Administration and Administration Options, work, but Integration Builder and Enterprise Service Repository don't work.*
*I don't understand, they applies the changes of OSS 1495500.*
*Any idea to do work Integration Builder and Enterprise Service Repository?*
*The details of error are:*<!-- ==================================================================
        ATTENTION: When modifying references in this file, remember to update
                   the corresponding files from the test-apps too!
                  (see repository_test.jnlp in &quot;_ibrep_test/webapp/start&quot; )
        =================================================================== ><!Do not define parts or packages! This will be done automatically ><! XI jars -->
        <!-- Maestro><!jar href=&quot;repository/maestro_ib.jar&quot; download=&quot;lazy&quot; /-->
        <!-- end Maestro><! Aris Client -->
        <!-- only for repository, when build is adapted
        &lt;jar href=&quot;repository/sapjco.jar&quot; download=&quot;lazy&quot; component=&quot;aris&quot;/&gt;
        &lt;nativelib href=&quot;repository/sap-rfc-windows.jar&quot; download=&quot;lazy&quot; component=&quot;aris&quot;/&gt;
><! end Aris ><! ssl libs -->
        <property name="jnlp.com.sap.aii.ib.client.properties" value="com.sap.aii.ib.client., com.sap.aii.ib.core., com.sap.aii.util.xml., com.sap.aii.connect., com.sap.aii.repository.mapping.additionaltypes, com.sap.aii.docu., com.sap.aii.ibrep.core., com.sap.aii.ibdir.core.*"/><property name="jnlp.com.
jnlp file truncated after 10K
Thanks in advanced!
Regards.
Verónica.