magento2.2.6 – Magento 2.2.6 Checkout issue

I am using Magento 2.2.6 and have a problem with the cash register.
We use auth.net direct post with the last applied patch.
It worked well in the beginning, but since the last two days we've received this error message https://www.screencast.com/t/F6AsugPcDUi6. I debug a lot and found that I get this error when I wait for the payment mode to authorize and capture. If I change it to Authorize only, the order can be placed successfully. When I check the exception log, the following error is displayed

[2019-03-16 19:22:53]    main.CRITICAL: Invalid amount for capture. {"Exception":"[object] (Magento \ Framework \ Exception \ LocalizedException (Code: 0): Invalid amount for the capture.) Under html / vendor / magento / module-authorizenet / Model / Directpost.php: 262) "} []

Does anyone have a similar problem? Can this be related to the last patch of auth.net?

Another problem sometimes is loading the checkout page forever. The hosting company has determined that it may be related to the Google Analytics script and may contain blocked ads. I am not sure if this is the case for all clients facing this problem. Has anyone found a similar problem?