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 (slider_id)' at line 1]
ALTER TABLE E2ywk7dV_lsp_images ADD COLUMN FOREIGN KEY (slider_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 'REFERENCES E2ywk7dV_lsp_sliders(slider_id)' at line 1]
ALTER TABLE E2ywk7dV_lsp_images ADD COLUMN REFERENCES E2ywk7dV_lsp_sliders(slider_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 'ON UPDATE CASCADE ON DELETE CASCADE' at line 1]
ALTER TABLE E2ywk7dV_lsp_images ADD COLUMN ON UPDATE CASCADE ON DELETE CASCADE