A standard problem for Synapse and httpclient classes is when the OpenSSL library is required for the https protocol to work. HTTPS requests are usually sent normally, but if there are problems with the HTTPS connection, then you need to add the appropriate OpenSSL libraries to the program folder.

You can download these libraries from the link OpenSSL libs download. Use the required bit depth of libraries for Windows.

These libraries are optional. In most cases, you won't need them, although you can add them to the folder just in case.