Sync failed between both F5 box

Hi all, I'm getting the error below when syncing the active box to the device group. I try to follow the article https://support.f5.com/kb/en-us/solutions/public/13000/800/sol13887.html but still gets the same error.

Sync error on Node1.local: Load failed from Node2.local 01070710:3: Database error (13), Cannot update_indexes/checkpoint DB object, class:sflow_http_virtual_data_source status:13 - EdbCfgObj.cpp, line 127.