Rught now my database is v1.3.8

I am using zencart of version 1.3.9f

Message shows that "Your database appears to need patching to a higher level. See Tools->Server Information to review patch levels."

So i have uploaded all files of v1.3.9 to my host and when i go to zc_install it starts process. But it shows an error message

1253 COLLATION 'latin1_general_ci' is not valid for CHARACTER SET 'utf8'
in:
[CREATE TABLE zen_counter_history_clean as SELECT * FROM zen_counter_history WHERE 1 GROUP BY startdate COLLATE latin1_general_ci;]

can any one tell me what is this? how i can solve this?