oozat use latest wallet from https://github.com/exosiscrypto/exosis/releases
If your wallet not syncing follow this steps.
1) First close your current running wallet by clicking Exit under Filer menu.
2) Once wallet closed proper, take wallet.dat backup from your exosis data folder.
To access exosis data folder type %appdata% in RUN and hit enter. To open RUN (Hold Windows key + R). Now search for exosis folder name and there you can see wallet.dat file.
3) Delete all files except wallet.dat and exosis.conf
4) Open or create file exosis.conf if not exist and add this line addnode=184.108.40.206, now save and close the file.
5) Now start the wallet it will sync from zero block.