Exception in LoginPageActivity

[mishasdk]

Double click back button causes exception.

It's impermissible!

[NevMem]

https://console.firebase.google.com/u/0/project/money-saver-adaeb/crashlytics/app/android:com.nevmem.moneysaver/issues/812b246ab22572cf43ac707eabd68693?time=last-seven-days&sessionId=5E374EE700CF0001723598462470109E_DNE_0_v2