Index column size too large. The maximum column size is 767 bytes

sed -i 's/utf8mb4mb4/utf8/g' /etc/mysql/mariadb.conf.d/*
drop your database
restart mysql services
mysql > select @@character_set_database;
Alter the value utf8mb4 to utf8 and set collate to utf8_general_ci
mysql > ALTER DATABASE glance CHARACTER SET utf8 COLLATE utf8_general_ci;