It frustrate me

Its nice at start but after using it for 5 months this are the problems i found
1. I cant open my finished task.
2. It hangs up, it doesnt respond anymore.
3. Suggestion, i think it is good if the finished task will be save as is. Example if it is on january. Its nice if ill open it and see a calendar in january not the latest one. Will now i cant open all finished task anyway.

llbm about Check! Pro - Planning Partner, v1.9.3