[BUG][IOS] Crash when trying to open the sheet

[KristijanKocev]

This happens rarely but enough that it is noticeable and our only source of crashes recently, maybe once every few days with daily usage.
I could not catch or reproduce it in dev, but here are the crash logs from Testflight which might help you identify the issue.
So far it has only happened on ios and never on android.

The crash message is
(null) in Swift runtime failure: Unexpectedly found nil while unwrapping an Optional value ()

[lodev09]

I think this PR fixes it
#108

[KristijanKocev]

Amazing, thank you for the quick reply.