fix: initv4141 script (#5967) (#5968)

Co-authored-by: Finley Ge <32237950+FinleyGe@users.noreply.github.com>

projects/app/src/pages/api/admin/initv4141.ts

@@ -108,7 +108,9 @@ async function appSplitMigration(teamId: string) {
         const obj = appMap.get(folder._id)!;
         const obj = appMap.get(folder._id)!;
         const newParentId = obj?.parentId ? appMap.get(obj!.parentId)?.newId : null;
         const newParentId = obj?.parentId ? appMap.get(obj!.parentId)?.newId : null;
 
 
-        const oldRps = RPMap.get(folder._id)!;
+        const oldRps = RPMap.get(folder._id);
+
+        if (oldRps) {
           rpOps.push(
           rpOps.push(
             ...oldRps.map((oldRp) => ({
             ...oldRps.map((oldRp) => ({
               insertOne: {
               insertOne: {
@@ -120,6 +122,7 @@ async function appSplitMigration(teamId: string) {
               }
               }
             }))
             }))
           );
           );
+        }
 
 
         if (!newParentId) {
         if (!newParentId) {
           continue;
           continue;