BUGFIX: session error when ErrorPage is viewed in the front
BUGFIX: session error when ErrorPage is viewed in the front

petpack/silverstripe-subsites,petpack/silverstripe-subsites,mikenz/silverstripe-simplesubsites,silverstripe/silverstripe-subsites,danaenz/silverstripe-subsites,silverstripe/silverstripe-subsites,danaenz/silverstripe-subsites,dnadesign/silverstripe-subsites,dnadesign/silverstripe-subsites,mikenz/silverstripe-simplesubsites,mandrew/silverstripe-subsites,wernerkrauss/silverstripe-subsites,mandrew/silverstripe-subsites,wernerkrauss/silverstripe-subsites