Convert Prestashop tables from mysisam to innodb using phpmyadmin

First run this query replacing databasetoconvert with the database name you want to convert

SELECT CONCAT('ALTER TABLE ', table_name, ' ENGINE=InnoDB;') AS sql_statements 
FROM information_schema.tables AS tb 
WHERE table_schema = 'databasetoconvert' 
ORDER BY table_name DESC LIMIT 0, 10000 ;

then copy the output and run it again against the database you want to convert