I0908 22:23:06.637419 15040 blender_python.cpp:160] Debug flags initialized to:
CPU flags:
  AVX2       : True
  AVX        : True
  SSE4.1     : True
  SSE3       : True
  SSE2       : True
  BVH layout : EMBREE
CUDA flags:
  Adaptive Compile : False
OptiX flags:
  Debug : False
I0908 22:23:07.203940 15040 device.cpp:45] CUEW initialization succeeded
I0908 22:23:07.203940 15040 device.cpp:47] Found precompiled kernels
I0908 22:23:15.243507 15040 blender_python.cpp:160] Debug flags initialized to:
CPU flags:
  AVX2       : True
  AVX        : True
  SSE4.1     : True
  SSE3       : True
  SSE2       : True
  BVH layout : EMBREE
CUDA flags:
  Adaptive Compile : False
OptiX flags:
  Debug : False
Switching to fully guarded memory allocator.
Blender 3.0.0 Alpha
Build: 2021-09-08 14:53:10 Windows release
argv[0] = C:\Users\Vas_v13\Desktop FAST\Blender 3.0\\blender
argv[1] = --debug
argv[2] = --debug-cycles
argv[3] = --python-expr
argv[4] = import bpy; bpy.ops.wm.sysinfo(filepath=r'C:\Users\Vas_v13\AppData\Local\Temp\blender\debug_logs\blender_system_info.txt')
Read prefs: C:\Users\Vas_v13\AppData\Roaming\Blender Foundation\Blender\3.0\config\userpref.blend
Traceback (most recent call last):
  File "C:\Users\Vas_v13\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\uvpackmaster2\register.py", line 166, in load_post_handler
    reset_target_box_params(get_prefs())
  File "C:\Users\Vas_v13\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\uvpackmaster2\blend.py", line 29, in get_prefs
    return bpy.context.preferences.addons['uvpackmaster2'].preferences
KeyError: 'bpy_prop_collection[key]: key "uvpackmaster2" not found'
I0908 22:23:27.836670 15152 device_impl.cpp:72] Will be using AVX2 kernels.
I0908 22:23:27.837666 15152 device_impl.cpp:72] Will be using AVX2 kernels.
Win32 Error# (170): The requested resource is in use.
Win32 Error# (170): The requested resource is in use.
Win32 Error# (170): The requested resource is in use.
Win32 Error# (170): The requested resource is in use.
Win32 Error# (170): The requested resource is in use.
Win32 Error# (170): The requested resource is in use.
Win32 Error# (170): The requested resource is in use.
E0908 22:23:27.928452 15152 blender_gpu_display.cpp:498] Error creating OpenGL context.
Error   : EXCEPTION_ACCESS_VIOLATION
Address : 0x00007FF70914B8D0
Module  : blender.exe
Thread  : 00003b30
Writing: C:\Users\Vas_v13\AppData\Local\Temp\blender.crash.txt