HitBTC changed their API. We will adjust it of course. They submit deposit and withdrawal transactions between the main and trading account. This leads to wrong balances due to recent imports.
So you need to delete 'Transfer to main account’ transactions that is showing up now. Transfers from the main account to the trading account are not imported.
You can delete them individually via selecting them on the "Transactions"" page with STRG or SHIFT and delete them as described here: Delete some or all transactions
You can check them on the trade list (full view) report as well sorting by "add date" - and if you come to the conclusion that they are wrong/not needed - you can delete them by exchange and import/add date (condition) as described here Bulk Edit and Delete transactions if they came in on a certain date.
Please create backup of your data beforehand and regularly as described here: Create backup, restore or export your account data
Afterwards please add a start date to you HitBTC API job to avoid that those transactions are imported again (see Create and delete API Import Job).