There is no response for API call from SolusVM Master node even though the action that was triggered by the API call (for example VPS removal) was successfully completed.
Short value for cURL timeout in the script that sends API call.
Increate cURL timeout in the script - for example from 20 seconds:
CONFIG_TEXT: curl_setopt($ch, CURLOPT_TIMEOUT, 20);
to 60 seconds
CONFIG_TEXT: curl_setopt($ch, CURLOPT_TIMEOUT, 60);