a6bb6589_seUS_Todo_Backup__online_help___Meaning
[Error Codes] 0X*****273 [Error Codes_2] 0X*****502 [Meaning_3] There is not enough space to store the temp files of tape operations. [Meaning] 
Failed to find specified plan or task.
Error Code list of EaseUS Todo Backup- online help.
Meaning