What it's the root cause of this warning?

Main Thread Checker: UI API called on a background thread: -[UIView setUserInteractionEnabled:]

PID: 2266, TID: 20651, Thread name: (none), Queue name: com.apple.root.default-qos, QoS: 0

Backtrace:

4 CellXrakQA 0x000000010b2534f4 -[LoginScreenViewController biometricIDAuthFail:] + 116

5 CellXrakQA 0x000000010b438dbc __31-[BiometricIDAuth authenticate]_block_invoke + 396

6 LocalAuthentication 0x000000010e0ced66 __50-[LAContext evaluatePolicy:localizedReason:reply:]_block_invoke_2 + 72

7 LocalAuthentication 0x000000010e0ce349 __42-[LAContext evaluatePolicy:options:reply:]_block_invoke_2 + 511

8 LocalAuthentication 0x000000010e0c9cd3 __52-[LAClient evaluatePolicy:options:uiDelegate:reply:]_block_invoke + 207

9 libdispatch.dylib 0x0000000110573d7f _dispatch_call_block_and_release + 12

10 libdispatch.dylib 0x0000000110574db5 _dispatch_client_callout + 8

11 libdispatch.dylib 0x00000001105777b9 _dispatch_queue_override_invoke + 1022

12 libdispatch.dylib 0x0000000110585632 _dispatch_root_queue_drain + 351

13 libdispatch.dylib 0x0000000110585fca _dispatch_worker_thread2 + 130

14 libsystem_pthread.dylib 0x000000011095d6b3 _pthread_wqthread + 583

15 libsystem_pthread.dylib 0x000000011095d3fd start_wqthread + 13

2019-05-16 09:00:31.973294-0300 CellXakQA[2266:20651] [reports] Main Thread Checker: UI API called on a background thread: -[UIView setUserInteractionEnabled:]

PID: 2266, TID: 20651, Thread name: (none), Queue name: com.apple.root.default-qos, QoS: 0

Backtrace:

4 CellXrakQA 0x000000010b2534f4 -[LoginScreenViewController biometricIDAuthFail:] + 116

5 CellXrakQA 0x000000010b438dbc __31-[BiometricIDAuth authenticate]_block_invoke + 396

6 LocalAuthentication 0x000000010e0ced66 __50-[LAContext evaluatePolicy:localizedReason:reply:]_block_invoke_2 + 72

7 LocalAuthentication 0x000000010e0ce349 __42-[LAContext evaluatePolicy:options:reply:]_block_invoke_2 + 511

8 LocalAuthentication 0x000000010e0c9cd3 __52-[LAClient evaluatePolicy:options:uiDelegate:reply:]_block_invoke + 207

9 libdispatch.dylib 0x0000000110573d7f _dispatch_call_block_and_release + 12

10 libdispatch.dylib 0x0000000110574db5 _dispatch_client_callout + 8

11 libdispatch.dylib 0x00000001105777b9 _dispatch_queue_override_invoke + 1022

12 libdispatch.dylib 0x0000000110585632 _dispatch_root_queue_drain + 351

13 libdispatch.dylib 0x0000000110585fca _dispatch_worker_thread2 + 130

14 libsystem_pthread.dylib 0x000000011095d6b3 _pthread_wqthread + 583

15 libsystem_pthread.dylib 0x000000011095d3fd start_wqthread + 13


Thanks in advance for any question just let me know.