An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions.
Different Types of Exceptions are:
No Such Element Exception:Thrown when no such element present in DOM
No Such Window Exception:Thrown when no such window is present
No such frame exception:Thrown when no such frame is present
Timeout Exception:Thrown when a command does not complete in enough time.
Stale element reference exception:Indicates that a reference to an element is now "stale" --- the element no longer appears on the DOM of the page.
Element not interactable exception:Indicates that a click could not be properly executed because the target element was obscured in some way.