Can not poll MAC addresses from a switch

We have 45 switches and there is one switch that I can not pull out any MAC address. I had no problem connect to the switch using SNMP just likes any others. It detects the number of ports as well.

I have tried to remove the switch and re-add it but still didn't work.

It's a 3x3750 cascaded Cisco switch.

Please advice. Thank you.