Fix 0.3.2-beta migration script

server/src/migrations/0.3.2-beta.ts

@@ -12,8 +12,13 @@ export async function convertPanelUrlToPanelId() {
 
   const panelUrlRegex = /^(.+)\/d\/(\w+)\/.+panelId=(\d+)/;
   const newPanelUrlRegex = /^(.+)\/dashboard\/(\w+).+panelId=(\d+)/;
-  const updatedAnalyticUnits = analyticUnits.map(analyticUnit => {
+  const updatedAnalyticUnits = analyticUnits
+    .map(analyticUnit => {
       const parsedPanelUrl = analyticUnit.panelUrl.match(panelUrlRegex) || analyticUnit.panelUrl.match(newPanelUrlRegex);
+      if(parsedPanelUrl === null) {
+        console.log(`Cannot parse url: ${analyticUnit.panelUrl}`);
+        return null;
+      }
       const grafanaUrl = parsedPanelUrl[1];
       const dashboardId = parsedPanelUrl[2];
       const oldPanelId = parsedPanelUrl[3];
@@ -24,7 +29,8 @@ export async function convertPanelUrlToPanelId() {
         grafanaUrl,
         panelId
       };
-  });
+    })
+    .filter(analyticUnit => analyticUnit !== null);
   
   console.log(updatedAnalyticUnits);
   await updatedAnalyticUnits.forEach(analyticUnit => db.updateOne(analyticUnit._id, {