Sorry for the delay!
I have attached the active.log file to this post. I reinstalled Python 2.7.14 and 3.6.5 before I reinstalled SVPTube 2 just now and I'm still having the same issue. The log file includes after I reinstalled Python.
Below are the last few entries in Event Viewer starting with the Python 3.6.5 installation. They all showed up under the "Information" level (not Critical etc.).
Source MsiInstaller - Product: Python 3.6.5 pip Bootstrap (64-bit) -- Installation completed successfully.
Source: RestartManager - Ending session 0 started 2018-04-22T22:25:15.298293500Z.
Source: ESENT - DllHost (11448,G,0) The beta feature EseDiskFlushConsistency is enabled in ESENT due to the beta site mode settings 0x800000.
Source: VSS - The VSS service is shutting down due to idle timeout.
Source: ESENT - DllHost (11448,G,0) The beta feature EseDiskFlushConsistency is enabled in ESENT due to the beta site mode settings 0x800000.