[2021] Crashes, crashes, crashes. For what???

Just like that, for no reason, the game crashes to the desktop without errors.

C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\logs\game_starter_log.txt

[27284] 2021-08-10 22:33:24   [14892]   ERROR   GameProcessWatcher.cpp (206)           Child process abnormal exit: 4124
[ 2212] 2021-08-11 23:32:00   [ 2836]   ERROR   GameProcessWatcher.cpp (206)           Child process abnormal exit: 2976
[ 5544] 2021-08-23 01:19:59   [17832]   ERROR   GameProcessWatcher.cpp (206)           Child process abnormal exit: 13840
[37524] 2021-09-11 02:12:55   [56976]   ERROR   GameProcessWatcher.cpp (206)           Child process abnormal exit: 49128
[13308] 2021-09-12 15:26:13   [19116]   ERROR   GameProcessWatcher.cpp (206)           Child process abnormal exit: 4552
[11624] 2021-09-13 14:39:23   [20412]   ERROR   GameProcessWatcher.cpp (206)           Child process abnormal exit: 20444

What does this all mean? How to fix that? Why you can't do it? I sent 5-10 reporst to you.

What is error number 206?