Hello to all dev-tech team. On last 10 hours I have 5 crashes like these one. The message is that: "LoginId:4d5426b74f812b4e210a4c8e354e8dd7
You do not have any debugging symbols required to display the callstack for this crash."

What is that debugging symbols please and how can fix these issue. I send a report but the crashes is still come out and close the game and bring me on desktop with a report on Unreal crash message.All taht after 240 hours of playing on these thre weeks.
After each crash I go to properties of game and check all the files, but there is all OK. So I start back to play but after some minutes its crashed again. Have you some solution please??