Probably the amount ( on July 1st ) was not correct updated in my wallet.
So on the screen the amount was enough in reality the wallet was already almost empty...
Exodus walletsupport found out that on 29 th June the wallet was already almost empty...
To the OP, the process for checking what your wallet balance should be is:
Check your "Addresses" on a block explorer like blockchain.info... you should be able to see the "Final Balance" amount for each address in your wallet. Add all of those "Final Balance" amounts together and you should have your current balance.
It may get slightly complicated if your wallet does not provide a list of your "change addresses" as you need to check the "Final Balance" of each of those as well... From memory, Exodus seems to like to hide a lot of things from the user, so I'm unsure if you can actually see your change addresses?