"Debugging and troubleshooting", "List of MyChat Client errors",  "Error #0319".
 
Error

Error #0319: menu identifiers list is empty
 

Error description

A command sent to the server contains an empty list with an identifiers menu. There must be a number or a string with numbers divided by a comma.
 
Problem solution

If you work with MyChat via API or directly using an open network protocol, change the transferred data.