Hi atelaeo,
Just to clarify, you are attempting to open the Launcher and it is having an error?
If so, please try the troubleshooting steps linked below. Afterwards if the issue is still present, follow the steps at the bottom of the page to find your ‘Verbose Logs’ and post them here. They are different from the logs you have posted and they will help us track down the issue.
Thanks,
TJ