[Target] PPD
[x86 or x64] x64
[Windows OS] Windows 7 Ultimate
[Content] Can't use the Twitter function
[error.log exists] yes
[What you did before error] Install the latest version
[PPD.ini] (refer attached PPD.ini)


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2022/2/13 1:15:56
FullName:PPDConfig, Version=1.1.0.0, Culture=neutral, PublicKeyToken=null
Assembly:F:\KHC\PPD\PPDConfig.exe
Name:PPDConfig.exe
FileVersion:1.1.0.0
ProductVersion:1.1.0.0
RefAssembly:mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
RefAssembly:System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
RefAssembly:System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
RefAssembly:PPDTwitter, Version=1.1.0.0, Culture=neutral, PublicKeyToken=null
RefAssembly:System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
RefAssembly:PPDConfiguration, Version=1.1.0.0, Culture=neutral, PublicKeyToken=null
RefAssembly:PPDFramework, Version=1.1.0.0, Culture=neutral, PublicKeyToken=null
RefAssembly:ErrorHandle, Version=1.2.0.0, Culture=neutral, PublicKeyToken=null
System.Collections.ListDictionaryInternal

Request was aborted: Failed to create SSL/TLS secure channel.
System
System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)
System.Net.HttpWebRequest.GetRequestStream()
CoreTweet.Request.HttpPost(Uri url, String contentType, Byte[] content, String authorizationHeader, ConnectionOptions options)
CoreTweet.Request.HttpPost(Uri url, IEnumerable`1 prm, String authorizationHeader, ConnectionOptions options)
CoreTweet.OAuth.Authorize(String consumerKey, String consumerSecret, String oauthCallback, ConnectionOptions options)
PPDTwitter.PPDTwitterManager..ctor(String consumerKey, String consumerSecret)
PPDConfig.Form1.get_TwitterManager()
PPDConfig.Form1.button1_Click(Object sender, EventArgs e)
System.IO.Stream GetRequestStream(System.Net.TransportContext ByRef)
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In my environment(latest Win10), it works well.
Please check you have .Net Framework 4.8 and its updates.

P.S. Windows7 is already EOL, you should migrate to new Windows.