There are two distinctive functions you can perform at the end of your financial year within Jiwa.
At the end of the financial year you need to Roll-Over your application. You should do this before doing any work in the new financial year.
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Select Jiwa - System - Yearly Roll-Over
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If this is the end of the financial year you most likely should only tick the "Roll-Over Application" field and then select the Process button
The Roll-Over General Ledger button is only used when you want to close last years' GL. You should do this only after you have finished all your transactions and your accountant has finalized the books for that year. Most people would run this someway through the year and they would not roll over the application at the same time.