Can't access to the internal server of fortigate from the router

[Firasbg]

I can ping from the router to the interface of FortiGate that is connected to lan but I can't ping to the internal server and they are the two in the same network 

this my policys 

[alif]

Hi @Firasbg,

Thank you for contacting Fortinet community.

Is firewall service disabled on the server?

Please run the debug flow on Fortigate as follows.

diagnose debug reset
diagnose debug flow filter addr <IP>  (can be source or dest IP)

diagnose debug flow filter proto 1
diagnose debug console timestamp enable
diagnose debug flow trace start 1000
diagnose debug enable

After performing the test, you can stop debugging;
diagnose debug disable
diagnose debug reset