WebView error TLS 1.2 - Help

I have an application with WebView, on Android it works perfectly but in IOS I'm getting a TLS 1.2 error.

2019-01-25 22:30:17.686174-0200 CIPLAN.iOS[3765:60722] SecTaskLoadEntitlements failed error=22 cs_flags=200, pid=3765
2019-01-25 22:30:17.686458-0200 CIPLAN.iOS[3765:60722] SecTaskCopyDebugDescription: CIPLAN.iOS[3765]/0#-1 LF=0
2019-01-25 22:30:17.742595-0200 CIPLAN.iOS[3765:60758] SecTaskLoadEntitlements failed error=22 cs_flags=200, pid=3765
2019-01-25 22:30:17.742875-0200 CIPLAN.iOS[3765:60758] SecTaskCopyDebugDescription: CIPLAN.iOS[3765]/0#-1 LF=0
2019-01-25 22:30:17.872320-0200 CIPLAN.iOS[3765:60758] [BoringSSL] boringssl_context_alert_callback_handler(3718) [C1.1:2][0x7fdf72e23390] Alert level: fatal, description: protocol version
2019-01-25 22:30:17.872801-0200 CIPLAN.iOS[3765:60758] [BoringSSL] boringssl_context_error_print(3670) boringssl ctx 0x600001402560: 140597682873608100000f0:SSL routines:OPENSSL_internal:UNSUPPORTED_PROTOCOL:/BuildRoot/Library/Caches/com.apple.xbs/Sources/boringssl_Sim/boringssl-109.220.4/ssl/handshake_client.cc:557:
2019-01-25 22:30:17.873197-0200 CIPLAN.iOS[3765:60758] [BoringSSL] boringssl_context_get_error_code(3575) [C1.1:2][0x7fdf72e23390] SSL_AD_PROTOCOL_VERSION
2019-01-25 22:30:17.894320-0200 CIPLAN.iOS[3765:60758] TIC TCP Conn Failed [1:0x600002333d80]: 3:-9836 Err(-9836)
2019-01-25 22:30:17.897862-0200 CIPLAN.iOS[3765:60758] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9836)
2019-01-25 22:30:17.898090-0200 CIPLAN.iOS[3765:60758] Task <1A29C422-B713-4E6D-8F4A-A956D9D240E2>.<0> HTTP load failed (error code: -1200 [3:-9836])
2019-01-25 22:30:17.898278-0200 CIPLAN.iOS[3765:60757] NSURLConnection finished with error - code -1200