SessionId->01a4de32-6fb5-4174-a438-90e377a3f8c2->/finance/conversion/api/conversion?outputType=XLSX->For security reasons DTD is prohibited in this XML document. To enable DTD processing set the DtdProcessing property on XmlReaderSettings to Parse and pass the settings into XmlReader.Create method.
Please share a problematic file and we’ll look into this issue.