Hi Gourav,
Have you tried running the Livecache inconsistency check report /sapapo/om17.
Did you tried accessing the WUF while your inconsistecny checking (Guess its OM17) is in progress, IF yes then probably you might've locked from accessing the WUF.
if you havent run the OM17 yet then please execute and check accessing wuf after the completion of OM17.
Can you share the error message, if any ?
Regards
Vinoth