iOS 14 crash when minimising and resuming app on preview

[Wian-TMC]

This crash only occurs sometimes when the app is minimised and resumed on iOS. The logs are:

Crashed: com.apple.main-thread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x00007356dbc81bd0
Crashed: com.apple.main-thread
0  libobjc.A.dylib                0x1bc87a1e0 objc_msgSend + 32
1  Flutter                        0x106539380 (Missing)
2  flutter_better_camera          0x106385948 -[FLTCam onCancelWithArguments:] + 48
3  Flutter                        0x106ae941c (Missing)
4  Flutter                        0x1065600d8 (Missing)
5  Flutter                        0x10685cf8c (Missing)
6  Flutter                        0x1067fdd94 (Missing)
7  Flutter                        0x1067ffbf4 (Missing)
8  CoreFoundation                 0x1a7d5422c __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 32
9  CoreFoundation                 0x1a7d53e28 __CFRunLoopDoTimer + 1076
10 CoreFoundation                 0x1a7d53278 __CFRunLoopDoTimers + 328
11 CoreFoundation                 0x1a7d4d02c __CFRunLoopRun + 1944
12 CoreFoundation                 0x1a7d4c360 CFRunLoopRunSpecific + 600
13 GraphicsServices               0x1bf38a734 GSEventRunModal + 164
14 UIKitCore                      0x1aa7c7584 -[UIApplication _run] + 1072
15 UIKitCore                      0x1aa7ccdf4 UIApplicationMain + 168
16 Runner                         0x104b4fa70 main + 15 (AppDelegate.swift:15)
17 libdyld.dylib                  0x1a7a08cf8 start + 4