diff --git a/src/main/services/download/download-manager.ts b/src/main/services/download/download-manager.ts
index 8573e116..dac9d6ff 100644
--- a/src/main/services/download/download-manager.ts
+++ b/src/main/services/download/download-manager.ts
@@ -450,9 +450,9 @@ export class DownloadManager {
   } | null> {
     switch (download.downloader) {
       case Downloader.Gofile: {
-        const id = download.uri.split("/").pop()!;
+        const id = download.uri.split("/").pop();
         const token = await GofileApi.authorize();
-        const downloadLink = await GofileApi.getDownloadLink(id);
+        const downloadLink = await GofileApi.getDownloadLink(id as string);
         await GofileApi.checkDownloadUrl(downloadLink);
 
         return {
@@ -462,8 +462,8 @@ export class DownloadManager {
         };
       }
       case Downloader.PixelDrain: {
-        const id = download.uri.split("/").pop()!;
-        const downloadUrl = await PixelDrainApi.getDownloadUrl(id);
+        const id = download.uri.split("/").pop();
+        const downloadUrl = await PixelDrainApi.getDownloadUrl(id as string);
 
         return {
           url: downloadUrl,
@@ -576,9 +576,9 @@ export class DownloadManager {
 
     switch (download.downloader) {
       case Downloader.Gofile: {
-        const id = download.uri.split("/").pop()!;
+        const id = download.uri.split("/").pop();
         const token = await GofileApi.authorize();
-        const downloadLink = await GofileApi.getDownloadLink(id);
+        const downloadLink = await GofileApi.getDownloadLink(id as string);
         await GofileApi.checkDownloadUrl(downloadLink);
 
         return {
@@ -592,8 +592,8 @@ export class DownloadManager {
         };
       }
       case Downloader.PixelDrain: {
-        const id = download.uri.split("/").pop()!;
-        const downloadUrl = await PixelDrainApi.getDownloadUrl(id);
+        const id = download.uri.split("/").pop();
+        const downloadUrl = await PixelDrainApi.getDownloadUrl(id as string);
 
         return {
           action: "start",
diff --git a/src/main/services/download/js-http-downloader.ts b/src/main/services/download/js-http-downloader.ts
index f4769e6a..5f0af779 100644
--- a/src/main/services/download/js-http-downloader.ts
+++ b/src/main/services/download/js-http-downloader.ts
@@ -134,7 +134,7 @@ export class JsHttpDownloader {
   ): Promise<void> {
     const response = await fetch(url, {
       headers: requestHeaders,
-      signal: this.abortController!.signal,
+      signal: this.abortController?.signal,
     });
 
     if (!response.ok && response.status !== 206) {
diff --git a/src/main/services/download/js-multi-link-downloader.ts b/src/main/services/download/js-multi-link-downloader.ts
index 05d80fd6..0d105b6d 100644
--- a/src/main/services/download/js-multi-link-downloader.ts
+++ b/src/main/services/download/js-multi-link-downloader.ts
@@ -61,7 +61,7 @@ export class JsMultiLinkDownloader {
       });
 
       const status = this.downloader.getDownloadStatus();
-      if (status && status.status === "complete") {
+      if (status?.status === "complete") {
         this.completedDownloads.push({
           name: status.folderName,
           size: status.fileSize,
@@ -105,7 +105,7 @@ export class JsMultiLinkDownloader {
       });
 
       const status = this.downloader.getDownloadStatus();
-      if (status && status.status === "complete") {
+      if (status?.status === "complete") {
         this.completedDownloads.push({
           name: status.folderName,
           size: status.fileSize,