Both advance and advanced are adjectives. But they do not mean the same.
Advance: provided or carried out in advance; prior
Advanced: far on (or ahead) in time or course; beyond introductory stage
COMPARE:
Most reservations are confirmed with a 50% advanced deposit. X
Most reservations are confirmed with a 50% advance deposit. √
He was in an advance stage of Leukemia. X
He was in an advanced stage of Leukemia. √
He is taking advance classes in English this year. X
He is taking advanced classes in English this year. √
COMMON COLLOCATIONS:
Advance booking
Advance notice
Advance warning
Advanced age / years
Advanced stage
Advanced technology
English Notes 
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