When the issue occurs, the console will display an alert stating, "Get Events Failed (Protocol error)" and a corresponding error log will be written in ds_agent-err.log with the following content:

[Error/1] | error loading module 'fwdpi' from file '/opt/ds_agent/lib/fwdpi.so':
    rtld: 0712-001 Symbol _ZNSt13basic_filebufIcSt11char_traitsIcEE6open64EPKcSt13_Ios_Openmode was referenced
      from module /opt/ds_agent/lib/fwdpi.so(), but a runtime definition
        of the symbol was not found.
stack traceback:
    [C]: in function 'require'
    ...t-filter_master/dsa/plugins/fw.dpi/dsp/fwdpi/service.lua:21: in main chunk
    [C]: in function 'require'
    [string "dsa"]:2: in main chunk | dsa/core/lua/LuaInterpreter.cpp:645:RunScript | 71012C:C0D:dsa.Scheduler_0002