Spelling and grammar mistakes
Too much description and/or backstory
Flashbacks
Confusing plot or timeline
No main character and/or haven't made us care about the character yet
Personal Introductions such as "My name is . . ."
Dreams
Mornings
First days
Funerals
Bad weather
Of course, the list is just an opinion shared by several in the industry at the moment. The tide can always turn around. Just write and give us your best. Good and interesting writing is really the ultimate goal.