When I open the game it telling You do not have any debugging symbols required to display the callstack for this crash what's the problem ?\

Development Platform & Builds Debugging, Optimization, & Profiling
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1

You do not have any debugging symbols required to display the callstack for this crash.

2

If you want the debugging symbols go the the Epic Launcher, click the downward arrow close to Launch in your UE4 version (orange button), choose Options and check Editors symbols for Debugging. Then click Apply.