What’s the difference between a personality flaw and character flaw?

A quote goes “make plenty allowances for personality flaws but none for character flaws” What’s your opinion on what this means?
Answers

Pat Wooden

Personality is something you are born with and for the most part, is out of your control. Character is something you create by choosing the standards that guide you and by the choices that you make. So, a personality flaw, such as shyness, can be managed but never totally erased. A character flaw is totally in your control, since you alone choose to make good or bad choices.

Leto

Personality traits are not necessarily character traits. Personality can include taste in music, general outgoing or shyness. Character speaks to a person's morals. Trustworthiness or honesty.