SELECT ROUND((total/vote_count), 2) AS count_star FROM m_h0_ratings WHERE `slug` = 'c71-pekopon-shinryaku-hyōgi-kai-shichimi-ha-tsu-chin-pekoponjin-ryoujoku-shirei-keroro-gunsou'Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8mb4_0900_ai_ci,COERCIBLE) for operation '='