ios - CoreFoundation __exceptionPreprocess crash -


i getting fatal exception: nsrangeexception *** -[__nsarraym objectatindex:]: index 0 beyond bounds empty array

but there no call removeobjectatindex, , happens in different view controllers. looking ideas since in lines 3-5 app given control there no symbols.

the crash log fabric/crashlytics , occurred around ~30 days app release instance or number of crashes relevant.

thread : fatal exception: nsrangeexception 0  corefoundation                 0x00000001830502d8 __exceptionpreprocess + 132 1  libobjc.a.dylib                0x00000001948740e4 objc_exception_throw + 60 2  corefoundation                 0x0000000182f3385c -[__nsarraym removeobjectatindex:] 3  appname                        0x00000001000875b8  4  appname                        0x000000010008698c  5  appname                        0x00000001000867c4  6  libdispatch.dylib              0x0000000194ec5994 _dispatch_call_block_and_release + 24 7  libdispatch.dylib              0x0000000194ec5954 _dispatch_client_callout + 16 8  libdispatch.dylib              0x0000000194eca20c _dispatch_main_queue_callback_4cf + 1608 9  corefoundation                 0x00000001830077f8 __cfrunloop_is_servicing_the_main_dispatch_queue__ + 12 10 corefoundation                 0x00000001830058a0 __cfrunlooprun + 1492 11 corefoundation                 0x0000000182f312d4 cfrunlooprunspecific + 396 12 graphicsservices               0x000000018c7476fc gseventrunmodal + 168 13 uikit                          0x0000000187af6fac uiapplicationmain + 1488 14 appname                        0x000000010012e8cc  15 libdyld.dylib                  0x0000000194ef2a08 start + 4


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