What do the Test Agent Test or Monitor error messages indicate

This is the list of error messages that can be  displayed when a test or monitor fails to start, and a longer description 

• "Sender overload"
  • Sender failed to send at the requested rate
• "Receiver overload"
  • Receiver failed to process all received packets
• "Invalid config"
  • Received config is invalid or does not meet constraints imposed by the plugin
• "Plugin crashed"
  • A plugin instance has crashed
• "Plugin installing"
  • Plugin is currently installing on the Test Agent
• "Plugin not installed"
  • Plugin failed to install on the Test Agent
• "Bind addr changed"
  • Bind address has changed, reconfiguring measurement
• "No bind addr"
  • No bind address available matching criteria
• "Plugin stopped"
  • Plugin has been stopped
• "Inbound filter error"
  • Inbound filter error
• "HW TS error"
  • Failed to get timestamp