The client's IP address changed while the session was in progress.

I have disabled this option on the APM Profile (issue fixed).

Select the Restrict to Single Client IP check box to restrict the current session to a single IP address. This setting associates the session ID with the IP address. You must select the associated Custom check box before you can configure this setting. With this setting enabled, upon a request to the session, if the IP address has changed, the request is redirected to a logout page, the session ID is deleted, and a log entry is written to indicate that a session hijacking attempt was detected. If such a redirect is not possible, the request is denied and the same events occur.

https://techdocs.f5.com/kb/en-us/products/big-ip_apm/manuals/product/apm-network-access-11-2-0/8.html