diff --git a/e2e/prebarrages-results.e2e-spec.ts b/e2e/prebarrages-results.e2e-spec.ts
index 09c79d23b2f5527fdb744664d70aa3023ce6a2ee..b7e83b5126a6df649dd4ff40a3d9163c2b0a7a30 100644
--- a/e2e/prebarrages-results.e2e-spec.ts
+++ b/e2e/prebarrages-results.e2e-spec.ts
@@ -3,7 +3,8 @@ import { CalculatorPage } from "./calculator.po";
 import { Navbar } from "./navbar.po";
 import { PreferencesPage } from "./preferences.po";
 import { browser, $, $$, expect } from '@wdio/globals'
-import { scrollToElement } from "./util.po";
+import { loadSession, scrollToElement } from "./util.po";
+import { SideNav } from "./sidenav.po";
 
 /**
  * Clone calculators
@@ -13,12 +14,14 @@ describe("Prébarrages results - ", () => {
     let calcPage: CalculatorPage;
     let navBar: Navbar;
     let prefPage: PreferencesPage;
+    let sidenav: SideNav;
 
     beforeAll(() => {
         listPage = new ListPage();
         calcPage = new CalculatorPage();
         navBar = new Navbar();
         prefPage = new PreferencesPage();
+        sidenav = new SideNav();
         jasmine.DEFAULT_TIMEOUT_INTERVAL = 1000 * 1000;
     });
 
@@ -56,4 +59,29 @@ describe("Prébarrages results - ", () => {
             expect(hasResults).toBe(true);
         }
     });
+
+    it("an error in calculation must lead to empty results for all walls/basins", async () => {
+        // load session file
+        await loadSession(navBar, sidenav, "./session/session-prebarrage-calculation-error.json");
+
+        // click "compute" button
+        const calcButton = await calcPage.getCalculateButton();
+        await calcButton.click();
+        await browser.pause(300);
+
+        // check no result is available
+        const nodes = await $$("g.nodes > g");
+        const nb = nodes.length;
+        for (let n = 0; n < nb; n++) {
+            const node = nodes[n];
+            await scrollToElement(node);
+            await browser.pause(100);
+            await node.click();
+            await browser.pause(200);
+
+            // check that result is empty
+            const hasResults = await calcPage.hasResults();
+            expect(hasResults).toBe(false);
+        }
+    });
 });
diff --git a/e2e/session/session-prebarrage-calculation-error.json b/e2e/session/session-prebarrage-calculation-error.json
new file mode 100644
index 0000000000000000000000000000000000000000..b8f6f4f8566e75709b4d5dfc83a91d9062bf1c84
--- /dev/null
+++ b/e2e/session/session-prebarrage-calculation-error.json
@@ -0,0 +1 @@
+{"header":{"source":"jalhyd","format_version":"1.3","created":"2023-05-16T06:32:05.999Z"},"settings":{"precision":1e-7,"maxIterations":100,"displayPrecision":3},"documentation":"","session":[{"uid":"b2kxNm","props":{"calcType":"PreBarrage"},"meta":{"title":"Prébarrages"},"children":[{"uid":"Zjczdz","props":{"calcType":"PbBassin"},"children":[],"parameters":[{"symbol":"S","mode":"SINGLE","value":13.8},{"symbol":"ZF","mode":"SINGLE","value":95}]},{"uid":"dWJrZX","props":{"calcType":"PbBassin"},"children":[],"parameters":[{"symbol":"S","mode":"SINGLE","value":15.4},{"symbol":"ZF","mode":"SINGLE","value":94.7}]},{"uid":"dzMxN2","props":{"calcType":"PbBassin"},"children":[],"parameters":[{"symbol":"S","mode":"SINGLE","value":16.2},{"symbol":"ZF","mode":"SINGLE","value":94.7}]},{"uid":"ZXZua2","props":{"calcType":"PbBassin"},"children":[],"parameters":[{"symbol":"S","mode":"SINGLE","value":17.5},{"symbol":"ZF","mode":"SINGLE","value":94.4}]},{"uid":"YmR5aD","props":{"calcType":"PbBassin"},"children":[],"parameters":[{"symbol":"S","mode":"SINGLE","value":32.1},{"symbol":"ZF","mode":"SINGLE","value":94.25}]},{"uid":"bDN2OW","props":{"calcType":"PbBassin"},"children":[],"parameters":[{"symbol":"S","mode":"SINGLE","value":35},{"symbol":"ZF","mode":"SINGLE","value":94.1}]},{"uid":"MWxycH","props":{"calcType":"PbCloison","upstreamBasin":"","downstreamBasin":"Zjczdz"},"children":[{"uid":"MmZ2aG","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95.3},{"symbol":"L","mode":"SINGLE","value":0.4},{"symbol":"CdCunge","mode":"SINGLE","value":1}]},{"uid":"eW9jZH","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95.3},{"symbol":"L","mode":"SINGLE","value":0.4},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"c3Zpb2","props":{"calcType":"PbCloison","upstreamBasin":"","downstreamBasin":"dWJrZX"},"children":[{"uid":"bTQ2cG","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":96},{"symbol":"L","mode":"SINGLE","value":1},{"symbol":"CdCunge","mode":"SINGLE","value":1}]},{"uid":"N24zM2","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":96.25},{"symbol":"L","mode":"SINGLE","value":5},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"MG4wNG","props":{"calcType":"PbCloison","upstreamBasin":"","downstreamBasin":"YmR5aD"},"children":[{"uid":"azV4dj","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":96.25},{"symbol":"L","mode":"SINGLE","value":3.5},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"YjJra2","props":{"calcType":"PbCloison","upstreamBasin":"","downstreamBasin":"bDN2OW"},"children":[{"uid":"aDd4Y3","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":96.25},{"symbol":"L","mode":"SINGLE","value":3.6},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"enE4cn","props":{"calcType":"PbCloison","upstreamBasin":"Zjczdz","downstreamBasin":"dzMxN2"},"children":[{"uid":"ZHczZ2","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95},{"symbol":"L","mode":"SINGLE","value":0.4},{"symbol":"CdCunge","mode":"SINGLE","value":1}]},{"uid":"aXRjZ3","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":96.25},{"symbol":"L","mode":"SINGLE","value":5.2},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"NXNoNG","props":{"calcType":"PbCloison","upstreamBasin":"dWJrZX","downstreamBasin":"dzMxN2"},"children":[{"uid":"eXFqeH","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95.85},{"symbol":"L","mode":"SINGLE","value":4.38},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"bGhodG","props":{"calcType":"PbCloison","upstreamBasin":"dWJrZX","downstreamBasin":"ZXZua2"},"children":[{"uid":"b3Z3OD","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95.85},{"symbol":"L","mode":"SINGLE","value":3},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"MDZ3aH","props":{"calcType":"PbCloison","upstreamBasin":"dWJrZX","downstreamBasin":"YmR5aD"},"children":[{"uid":"NXJ1OW","props":{"calcType":"Structure","loiDebit":"WeirSubmergedLarinier","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95.5},{"symbol":"L","mode":"SINGLE","value":1},{"symbol":"CdWSL","mode":"SINGLE","value":0.75}]},{"uid":"b3pjZX","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95.5},{"symbol":"L","mode":"SINGLE","value":1},{"symbol":"CdCunge","mode":"SINGLE","value":0.4}]}],"parameters":[]},{"uid":"emZ2bX","props":{"calcType":"PbCloison","upstreamBasin":"dzMxN2","downstreamBasin":"ZXZua2"},"children":[{"uid":"cGllNj","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":94.7},{"symbol":"L","mode":"SINGLE","value":0.4},{"symbol":"CdCunge","mode":"SINGLE","value":1}]},{"uid":"aWFseW","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95.65},{"symbol":"L","mode":"SINGLE","value":5.74},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"bG1ucj","props":{"calcType":"PbCloison","upstreamBasin":"ZXZua2","downstreamBasin":"YmR5aD"},"children":[{"uid":"MDJsaD","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":94.4},{"symbol":"L","mode":"SINGLE","value":0.4},{"symbol":"CdCunge","mode":"SINGLE","value":1}]},{"uid":"ZzY2bT","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95.35},{"symbol":"L","mode":"SINGLE","value":6},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"dGNnZz","props":{"calcType":"PbCloison","upstreamBasin":"YmR5aD","downstreamBasin":"bDN2OW"},"children":[{"uid":"dnNqeX","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":94.25},{"symbol":"L","mode":"SINGLE","value":0.7},{"symbol":"CdCunge","mode":"SINGLE","value":1}]},{"uid":"ODFkZ2","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":95.05},{"symbol":"L","mode":"SINGLE","value":9.5},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]},{"uid":"amprcm","props":{"calcType":"PbCloison","upstreamBasin":"bDN2OW","downstreamBasin":""},"children":[{"uid":"OG02MT","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":94.1},{"symbol":"L","mode":"SINGLE","value":0.95},{"symbol":"CdCunge","mode":"SINGLE","value":1}]},{"uid":"MHVxZn","props":{"calcType":"Structure","loiDebit":"WeirCunge80","structureType":"SeuilRectangulaire"},"children":[],"parameters":[{"symbol":"ZDV","mode":"SINGLE","value":94.75},{"symbol":"L","mode":"SINGLE","value":10.2},{"symbol":"CdCunge","mode":"SINGLE","value":1}]}],"parameters":[]}],"parameters":[{"symbol":"Q","mode":"SINGLE","value":0.844},{"symbol":"Z1","mode":"CALCUL"},{"symbol":"Z2","mode":"SINGLE","value":94.45}]}]}
\ No newline at end of file