Issue when click on the same textbox twice

I have a textbox, on a login screen. When i click twice on the the textbox i get the crash below, Any help or advice is welcome.

TextBox: do you mean TextField, TextView or something else ?

Could you show code where crash occurs ? As well as code dealing with the TextBox ? In particular actions defined for didBeginEditing or Editing Did Change notifications if there are.

Yes Correct, i mean TextField. I only have one event textFieldShouldReturn , i had try to remove it all together and use begin editing event. Also i had try to complete remove the event and in both i get the same error. I had include the complete login code below, and on my first post i had include the crash report i get.

Issue when click on the same textbox twice
 
 
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