error 40084 task main reference to unknown data

Hello there
s4 1400-2338 I am using this robot I am giving this error
Do you have any information
error 40084 task main reference what can I do to do what is unknown
Do you have any information
error 40084 task main reference what can I do to do what is unknown
Answers
task main :reference to unknownentire data
no data ( or other objet )with the specified name is visible from this program position