'Getting CFNetwork, CoreMotion Crashes after releasing iOS Application

After releasing my ios application, I started to get lots of crash such as CFNetwork, CoreMotion etc. And then I thought, I did something wrong on my project. I sent a new build after reversed everything what I did. But problem is I am getting same crashes. There is no difference between previous build which I do not get these errors and current build. How is it possible that? Is there anyone who has an idea? I am attaching the most crash logs that I get. Interesting thing is I am NOT getting this crash on ios latest version (15.4.1). I am getting this crash only below ios 15.4.1. I am not able to reproduce on my side. I am sharing firebase logs.

com.apple.NSURLConnectionLoader
0  libsystem_kernel.dylib         0x1504 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x1b9c mach_msg + 76
2  CoreFoundation                 0x7738 __CFRunLoopServiceMachPort + 372
3  CoreFoundation                 0xba2c __CFRunLoopRun + 1212
4  CoreFoundation                 0x1f468 CFRunLoopRunSpecific + 600
5  CFNetwork                      0x27a510 _CFURLStorageSessionCopyIdentifier + 59784
6  Foundation                     0x683fc __NSThread__start__ + 808
7  libsystem_pthread.dylib        0x19a4 _pthread_start + 148
8  libsystem_pthread.dylib        0xea0 thread_start + 8


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