Error in the Windows Application log + dell Equalogics

Hello Support

I have some errors that are pointing in my Server Application log :

CHAP is not supported for MPIO sessions by adapter at IP. Please add an access control record for target specifying the Initiator IQN string

I dont know what this mean since i'm not a SAN guy . but every thing seems to be working fine , volumes are attached but i noticed these last days some crash of the ISCSI initiator when the server restart could this be related