instance 0 changed state from discarding to forwarding

Hi,

Guys, I am facing a problem that is difficult to identify the reason;

SW CORE VLAN 248 is delivering dhcp;

VLAN 248 passing in the trunk to SW2;

TRUNK from SW2 passing VLAN 248;

VLAN 248 created on the fortiswitch, but when I put the vlan on an access interface I get these alerts in the log and obviously it doesn't deliver dhcp.

what tests can I do to try and identify the problem?