It always happen if i close gele or mist,,,,,,i have to restart blockchain from first block.... here is a picture

required to delete C:\Users\\AppData\Roaming\Elementrem\nodes and C:\Users\ AppData\Roaming\Elementrem\chaindata for start again
Thank you for your reporting
We found a few problems with gele Sync.
But Do not worry. It has confirmed that there is no problem in the Block, Account and Mining.
We'll fix within two days. When the update is complete, I will send you a message.
Thank you for your time and consideration.
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Fixed a bug in the restart wallet block sync.
please download the new version.