iOS 13 Crash and just find issues.Please repair it as soon as possible.

[jcg9487]

pageViewController setViewControllers need add to main queue.

__weak typeof(self) weakSelf = self;
dispatch_async(dispatch_get_main_queue(), ^{
[weakSelf.pageViewController setViewControllers:@[ viewController ]
direction:animateDirection
animated:animate
completion:animateCompletionBlock];
});

[emelyanovkirill]

Thanks, it helped me)
I had a fatal error for iOS 13:
*** Assertion failure in UITraitCollection * _Nonnull _UIGetCurrentFallbackTraitCollection(void)(), /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKitCore_Sim/UIKit-3899.13.13/_UIFallbackEnvironment.m:91
error: Execution was interrupted, reason: breakpoint 1.1.
The process has been returned to the state before expression evaluation.