Account is getting locked and user reporting 401 authentication error

Aug 11 02:00:00 slot1/Madhu-f5viprion err httpd[22460]: [error] [client 10.10.10.10] AUTHCACHE PAM: user 'F5_LOCAL_USER' - invalid account: Authentication token is no longer valid; new one required

Aug 11 02:00:00 slot1/Madhu-f5viprion err httpd[28878]: [error] [client 10.10.10.10] AUTHCACHE PAM: user 'F5_LOCAL_USER' - invalid account: Authentication token is no longer valid; new one required

Aug 11 02:00:03 slot1/Madhu-f5viprion warning httpd[28880]: [warn] [client 10.10.10.10] AUTHCACHE Error processing cookie DDF2C7B8D3A4B27A701A117DF14AACA171387FF5 - Cookie user mismatch

Aug 11 02:00:03 slot1/Madhu-f5viprion err httpd[28880]: [error] [client 10.10.10.10] AUTHCACHE PAM: user 'F5_LOCAL_USER' - invalid account: Authentication token is no longer valid; new one required

Aug 11 02:00:06 slot1/Madhu-f5viprion warning httpd[28877]: [warn] [client 10.10.10.10] AUTHCACHE Error processing cookie DDF2C7B8D3A4B27A701A117DF14AACA171387FF5 - Cookie user mismatch