These are my extensions, i know DownloadToASD is done but i need some recommendations for alternatives

Remove each extension in turn and test for the error. If the error disappears, then you should know which extension is causing the problem. Are you using the very latest versions of all your extensions ?
For what ?
The web component downloads to the ASD by default.
The webviewextra extension will download to the asd (using the native webviewer)
There are many encryption extensions available
the alternatives are mentioned in that thread
Alternative extensions
- ASD Downloader Extension by The_K_Studio to download and manage files in ASD
- Fetch Extension by Sumit1334, a file downloader extension
- SuperDownloader Extension by Passos_0213
- Customdownloader Extension by Riad_Developer
Taken from the extensions directory App Inventor Extensions | Pura Vida Apps
Taifun