There really isn't much we can do when it comes to X-Plane beta's. Whatever fixes we make now, may very well become obsolete in the next version.
If you insist on keeping 11.50 and flying in it, the only things I can recommend is to first try loading the default Cessna, go to your settings, and disable Vulkan, and then try loading the TBM. If that works, then try enabling Vulkan and restart the sim. You may be stuck in OpenGL until the next beta arrives. The other thing you can try is remove all 3rd party plugins, with the exception of Gizmo, and try again. If it loads successfully, you can then try replacing 1 plugin/add on at a time, until it loads properly. Due to it's unstable nature, any amount of problems can be occurring with the beta when 1 or more plugins are thrown into the mix.
Your log shows X-Plane having several issues before it crashes back to desktop. I've added the section of the log where it shows this.