diff --git a/lib/mailchimp/mailchimp.php b/lib/mailchimp/mailchimp.php
index 03b35c1..212b97c 100644
--- a/lib/mailchimp/mailchimp.php
+++ b/lib/mailchimp/mailchimp.php
@@ -190,11 +190,15 @@ public function post( $endpoint, $body, $method = 'POST' ) {
 					// Email address doesn't come back from the API, so if something's wrong, it's that.
 					$field_name                   = esc_html__( 'Email Address', 'mailchimp' );
 					$body['errors'][0]['message'] = esc_html__( 'Please fill out a valid email address.', 'mailchimp' );
+				} elseif ( ! empty( $body['errors'] ) && isset( $body['errors'][0]['field'] ) && 'email_address' === $body['errors'][0]['field'] ) {
+					$field_name = esc_html__( 'Email Address', 'mailchimp' );
 				} elseif ( ! empty( $body['errors'] ) && isset( $body['errors'][0]['field'] ) && $merge['tag'] === $body['errors'][0]['field'] ) {
 					$field_name = $merge['name'];
 				}
 			}
-			$message = sprintf( $field_name . ': ' . $body['errors'][0]['message'] );
+			$message = $body['errors'][0]['message'] ?? esc_html__( 'Something went wrong, Please try again later.', 'mailchimp' );
+			$message = ( ! empty( $field_name ) ) ? $field_name . ': ' . $message : $message;
+
 			return new WP_Error( 'mc-subscribe-error-api', $message );
 		}
 	}
diff --git a/tests/cypress/e2e/settings.test.js b/tests/cypress/e2e/settings.test.js
index ceb4406..0466b10 100644
--- a/tests/cypress/e2e/settings.test.js
+++ b/tests/cypress/e2e/settings.test.js
@@ -35,7 +35,7 @@ describe('Admin can update plugin settings', () => {
 				cy.get('#mc_signup_submit').should('exist');
 				cy.get('#mc_signup_submit').click();
 				cy.get('.mc_error_msg').should('exist');
-				cy.get('.mc_error_msg').contains(': This value should not be blank.');
+				cy.get('.mc_error_msg').contains('Email Address: This value should not be blank.');
 			}
 		});
 	});
@@ -55,7 +55,7 @@ describe('Admin can update plugin settings', () => {
 				cy.get('#mc_signup_submit').should('exist');
 				cy.get('#mc_signup_submit').click();
 				cy.get('.mc_error_msg').should('exist');
-				cy.get('.mc_error_msg').contains(': This value should not be blank.');
+				cy.get('.mc_error_msg').contains('Email Address: This value should not be blank.');
 			}
 		});
 	});