Objective C: terminating with uncaught exception of type NSException -


can me this? app crashes every time hit right bar button item. shows error report in console log.

2017-09-12 15:08:24.161 project [17021:140445] -[__nssingleobjectarrayi boolvalue]: unrecognized selector sent instance 0x608000011840 2017-09-12 14:37:32.900 project [15766:128927] *** terminating app due uncaught exception 'nsinvalidargumentexception', reason: '-[__nssingleobjectarrayi boolvalue]: unrecognized selector sent instance 0x60800020da90' *** first throw call stack: (     0   corefoundation                      0x000000011090a34b __exceptionpreprocess + 171     1   libobjc.a.dylib                     0x000000011036b21e objc_exception_throw + 48     2   corefoundation                      0x0000000110979f34 -[nsobject(nsobject) doesnotrecognizeselector:] + 132     3   corefoundation                      0x000000011088fc15 ___forwarding___ + 1013     4   corefoundation                      0x000000011088f798 _cf_forwarding_prep_0 + 120     5   project                             0x000000010d812a94 __35-[summaryviewcontroller loaddetails]_block_invoke + 244     6   accountancy insurance tai           0x000000010d81bb88 __64-[afhttprequestoperation setcompletionblockwithsuccess:failure:]_block_invoke.49 + 40     7   libdispatch.dylib                   0x00000001118a1980 _dispatch_call_block_and_release + 12     8   libdispatch.dylib                   0x00000001118cb0cd _dispatch_client_callout + 8     9   libdispatch.dylib                   0x00000001118aba1d _dispatch_main_queue_callback_4cf + 733     10  corefoundation                      0x00000001108ce4f9 __cfrunloop_is_servicing_the_main_dispatch_queue__ + 9     11  corefoundation                      0x0000000110893f8d __cfrunlooprun + 2205     12  corefoundation                      0x0000000110893494 cfrunlooprunspecific + 420     13  graphicsservices                    0x0000000114401a6f gseventrunmodal + 161     14  uikit                               0x000000010e5e4f34 uiapplicationmain + 159     15  project                             0x000000010d807143 main + 99     16  libdyld.dylib                       0x000000011191768d start + 1 ) libc++abi.dylib: terminating uncaught exception of type nsexception


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