Just as a guide all the tables should be utf8mb4_general_ci
The database should be utf8mb4_general_ci
Here is your query from a site that is working:
character_set_client utf8mb4
character_set_connection utf8mb4
character_set_database utf8mb4
character_set_filesystem binary
character_set_results utf8mb4
character_set_server latin1
character_set_system utf8
collation_connection utf8mb4_general_ci
collation_database utf8mb4_general_ci
collation_server latin1_swedish_ci
