Error distributing to AppStore - "type":"EXC_CRASH","signal":"SIGABRT"

Same here!

Warning: Unable to create restoration in progress marker file
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x0000000000000000
error: memory read failed for 0x0
Target 0: (Runner) stopped.
Error launching application on iPhone de Rafael.
Exited

Looking at just your first crash report, I see this:

Exception Type:  EXC_CRASH (SIGABRT)

This indicates that your app has trapped (deliberately crashed) by calling abort. The crashing thread backtrace shows this:

Thread 0 name:   Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   libsystem_kernel.dylib  … __pthread_kill + 8
1   libsystem_pthread.dylib … pthread_kill + 268
2   libsystem_c.dylib       … abort + 180
3   Flutter                 … 0x10467c000 + 3002444
4   Flutter                 … 0x10467c000 + 3002904
5   Flutter                 … 0x10467c000 + 6099352
6   Flutter                 … 0x10467c000 + 4031884
7   Flutter                 … 0x10467c000 + 107604
8   Flutter                 … 0x10467c000 + 179068
9   Flutter                 … 0x10467c000 + 178592
10  UIKitCore               … -[UINib instantiateWithOwner:options:] + 1752

UIKit (frame 10) has called into your app (frames 9 through 3) which has called abort (frame 2). It’s hard to say why it’s done that because all the frames in your app are unsymbolicated. You’ll need to either symbolicate these yourself — see Adding Identifiable Symbol Names to a Crash Report — or escalate this via the support channel for your third-party runtime.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"