Update permission

All my tables have a primary column, but the insert, update and delete actions are grayed out in the row action panel. How can I make the app updatable?

CREATE TABLE author
(author_id int NOT NULL auto_increment
,author_native varchar(80) NULL
,author_english varchar(80) NULL
,country varchar(50) NULL
,create_date timestamp NULL DEFAULT CURRENT_TIMESTAMP
,PRIMARY KEY (author_id)
) ENGINE InnoDB DEFAULT CHARACTER SET utf8mb4 COLLATE=utf8mb4_unicode_ci;