I can't update Synchro 4D Pro v6.4.3.2 to v6.5.1.5

I can't update Synchro 4D Pro v6.4.3.2 to v6.5.1.5 or download Synchro 4D Pro v6.5.1.5.

If I update or download, Synchro 4D Pro is just disappear and i can't find Synchro program anywhere.

Also i can't open .sp file as well. 

Plz help me..Cry

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