fix(ens): solve division by zero at reporting (#9451)

Co-authored-by: Pedro Martín <pedromarting3@gmail.com>

api/CHANGELOG.md

@@ -7,6 +7,7 @@ All notable changes to the **Prowler API** are documented in this file.
 
 ### Fixed
 - Unique constraint violation during compliance overviews task [(#9436)](https://github.com/prowler-cloud/prowler/pull/9436)
+- Division by zero error in ENS PDF report when all requirements are manual [(#9443)](https://github.com/prowler-cloud/prowler/pull/9443)
 
 ---
 

api/src/backend/tasks/jobs/report.py

@@ -2229,12 +2229,20 @@ def generate_ens_report(
             [
                 "CUMPLE",
                 str(passed_requirements),
-                f"{(passed_requirements / total_requirements * 100):.1f}%",
+                (
+                    f"{(passed_requirements / total_requirements * 100):.1f}%"
+                    if total_requirements > 0
+                    else "0.0%"
+                ),
             ],
             [
                 "NO CUMPLE",
                 str(failed_requirements),
-                f"{(failed_requirements / total_requirements * 100):.1f}%",
+                (
+                    f"{(failed_requirements / total_requirements * 100):.1f}%"
+                    if total_requirements > 0
+                    else "0.0%"
+                ),
             ],
             ["TOTAL", str(total_requirements), "100%"],
         ]