The amount of the coin become smaller and it can not be transferred. But if I see it thru blockchain, the number of the coin is right

I have always just used this software to look the chart. Today I tried to switch to u to buy coins. As a result, the amount of coins in the account became smaller, from 5 trillion to 0.00005, and every time I bought it, the contract call was successful ( I don’t understand what it means.) When I clicked on the transaction page, it showed that the amount of coins I bought was correct, but the wallet amount was incorrect. After that, I tried to see if I could transfer the funds to other wallets, but the result kept showing that the amount failed. , I want to find the official website customer service and the result is not even the customer service connection.