Freeradius Not working with Bits limit for Hotspots

Hi I have acquired a freeradius server which i currently manage. I am facing some issues with it. All hotspot users are getting disconnected after using 2gb. As per debug what i have seen is that freeradius is receiving an attribute Mikrotik-Total-Limit with 2147483648 I cannot find where this attribute is coming from.. Also there is no Mikrotik-Total-Limit on radgroupreply. It is driving me crazy. Can someone help me with this? I have attached three debug reports. Thanks in advance. Regards