It's impossible to help you considering you haven't provided anything about your configuration, for example you haven't said which simulator you use ( the precise, exact version ), to understand if you are using PBR or not.
The SODE error log indicates it cannot find the jetway.cfg file in the FSDT_SODE_JW_JBTC_43_20 folder but, of course, the file is there so, the only possible explanation is your simulator configuration files are being reset by other add-ons to a previous version, one before GSX was installed, so neither GSX nor SODE can find the required Simobjects.