GRC Access Requests - Error while approval

Hi experts!

I am working on GRC AC 10.1 SP 11 and we are facing an issue with access requests. When a request contains several roles for a user (a FireFighter user) and this request is approved, at the end, provisioning does not happen. In fact, if we search the request and we  click on "Administration" button, we see this:

There is no dump (in GRC or ERP system) and no error message in SLG1 and in GRFNMW_DBGMONITOR_WD tcodes neither.

¿Any idea?

Thanks a lot!