Some people has a tendency to interchange the use of "advise" and "advice". For those who are sometimes confuse on what to use, here's a very simple explanation.
According to wikitionary,
Advice: An opinion recommended or offered, as worthy to be followed; counsel; Deliberate consideration; knowledge; Information or notice given ... en.wiktionary.org/wiki/advice
Advise: To give advice to; to offer an opinion, as worthy or expedient to be followed; to counsel; to warn; To give information or notice to; to inform; — with of before the thing communicated. en.wiktionary.org/wiki/advise
"Advice" is a noun while "advise" is a verb. Thus, advise is the act of giving an advice. Makes sense, isn't it?