Additionally, it is working properly in KNIME 5.2.3 on the same PC. There are no differences in the settings between these versions (Network Connections), and no proxy is being used. There are also no restrictions on internet connection.
The error message indicates that a JsonMappingException is occurring, which suggests that there has been an issue when attempting to parse JSON-formatted data, resulting in an unparseable data structure.
Is it possible that the internal format of JSON changed between versions 4.7.8 and 5.2.3?