diff --git a/projects/packages/boost-core/changelog/fix-not-parsing-some-wpcom-errors-properly b/projects/packages/boost-core/changelog/fix-not-parsing-some-wpcom-errors-properly
new file mode 100644
index 0000000000000..d24d162efc1e6
--- /dev/null
+++ b/projects/packages/boost-core/changelog/fix-not-parsing-some-wpcom-errors-properly
@@ -0,0 +1,4 @@
+Significance: patch
+Type: fixed
+
+General: Fixed not parsing error responses from WordPress.com properly.
diff --git a/projects/packages/boost-core/src/lib/class-utils.php b/projects/packages/boost-core/src/lib/class-utils.php
index 848cf3009c0b3..52207e115f075 100644
--- a/projects/packages/boost-core/src/lib/class-utils.php
+++ b/projects/packages/boost-core/src/lib/class-utils.php
@@ -133,11 +133,26 @@ public static function send_wpcom_request( $method, $endpoint, $args = null, $bo
 				$code
 			);
 
+			/*
+			 * Normalize error responses from WordPress.com.
+			 *
+			 * When WordPress.com returns an error from Boost Cloud, the body contains
+			 * statusCode and error. When it returns a WP_Error, it contains code and message.
+			 */
 			// phpcs:disable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
-			$err_code = empty( $data['statusCode'] ) ? 'http_error' : $data['statusCode'];
-			$message  = empty( $data['error'] ) ? $default_message : $data['error'];
-
-			return new \WP_Error( $err_code, $message );
+			if ( isset( $data['statusCode'] ) && isset( $data['error'] ) ) {
+				// phpcs:disable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
+				$data_code    = $data['statusCode'];
+				$data_message = $data['error'];
+			} elseif ( isset( $data['code'] ) && isset( $data['message'] ) ) {
+				$data_code    = $data['code'];
+				$data_message = $data['message'];
+			}
+
+			$error_code = empty( $data_code ) ? 'http_error' : $data_code;
+			$message    = empty( $data_message ) ? $default_message : $data_message;
+
+			return new \WP_Error( $error_code, $message );
 		}
 
 		return $data;
diff --git a/projects/plugins/boost/app/assets/src/js/features/image-size-analysis/recommendations-meta/recommendations-meta.tsx b/projects/plugins/boost/app/assets/src/js/features/image-size-analysis/recommendations-meta/recommendations-meta.tsx
index 049d1bb448a59..f475249d3f8b6 100644
--- a/projects/plugins/boost/app/assets/src/js/features/image-size-analysis/recommendations-meta/recommendations-meta.tsx
+++ b/projects/plugins/boost/app/assets/src/js/features/image-size-analysis/recommendations-meta/recommendations-meta.tsx
@@ -87,7 +87,7 @@ const RecommendationsMeta: React.FC< Props > = ( { isCdnActive } ) => {
 		isaRequest.isError;
 
 	const getErrorMessage = ( report: typeof isaReport ) => {
-		if ( report?.status === 'error' || report?.status === 'not-found' ) {
+		if ( report?.status === 'error' ) {
 			return report.message;
 		}
 
diff --git a/projects/plugins/boost/changelog/fix-isa-showing-error-if-no-report-present b/projects/plugins/boost/changelog/fix-isa-showing-error-if-no-report-present
new file mode 100644
index 0000000000000..ec4939628d4b8
--- /dev/null
+++ b/projects/plugins/boost/changelog/fix-isa-showing-error-if-no-report-present
@@ -0,0 +1,4 @@
+Significance: patch
+Type: fixed
+
+UI: Fixed showing an error if no ISA report was found.