The actual resolution to this problem scenario may vary depending on a clients specific circumstance for receiving these errors. However, addressing one or more of the following action items will likely resolve the problem.
Talk to your sites RACF Administrator and make sure that the USERID being used to access CA Bundl has been defined with "CONTROL" access authority. Control access authority is required in order for a user to be able to logon to CA Bundl.
Recycle the CA LSERV started task that services the CA Bundl files that you are trying to access. Ensure that upon restarting the CA LSERV task, that you receive both a "LDM0090I - ADDFILE DPMFBSF" and a "LDM0503I - DPMFBSF successfully added" message which confirms that the CA LSERV task should have access to, and be able to open the CA Bundl DPMFBSF file.
If you have confirmed that the appropriate CA LSERV task is active and that it has successfully added the DPMFBSF file, but you are still receiving the errors, check the SSN$ and DDN$ value specifications associated to the CA Bundl function you are trying to perform. If attempting LOGON, check your logon CLIST, CICS or VTAM configurations. The value for the SSN$ specification MUST match the 4 character active CA LSERV tasks SSNAME=nnnn value. And the value for the DDN$ specification must match the 4 character prefix of the CA Bundl VSAM files you are trying to access.