Avira Antivirus is a software that protects your computer from all the known malware. The Fix Avira Antivirus Error 500 is an HTTP status code that indicates a corrupted file or web server. If you wish to resolve this error, follow the below-mentioned steps.
Method 1: Repair Avira Installation
Method 2: Reinstall the Avira components
Method 3: Running Disk Cleanup