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1. Edit file /etc/my.cnf.d/mariadb-server.cnf and add these 3 lines to the [mysqld] section: innodb_large_prefix=true innodb_file_format=barracuda innodb_file_per_table=true This will enable usage of Multi-byte (in particular – 4-byte) UTF-8 support in Drupal 7. 2. mysqli: If you have problems with mysqli/mysql change the mysqli to mysql (or vice versa – whatever works for you) in /sites/default/settings.php. Alternatively […]