Install Errors

After activating plugin errors at top opf screen:

r: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FOREIGN KEY (container_id) REFERENCES srm_container(id)' at line 1]
ALTER TABLE srm_containerrating ADD COLUMN FOREIGN KEY (container_id) REFERENCES srm_container(id)

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FOREIGN KEY (review_id) REFERENCES srm_reviews(id)' at line 1]
ALTER TABLE srm_rating ADD COLUMN FOREIGN KEY (review_id) REFERENCES srm_reviews(id)

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FOREIGN KEY (container_id) REFERENCES srm_container(id)' at line 1]
ALTER TABLE srm_reviews ADD COLUMN FOREIGN KEY (container_id) REFERENCES srm_container(id)

Can’t really ger further than this as whole WP navigation system gets messed up. Any ideas?

https://ww.wp.xz.cn/plugins/star-review-manager/