I see that it seems to be getting stuck in a potentially infinite loop while scanning your cache directories. Caching is always a problem when you are trying to actively scan and remove infections from your site. You do not want the caching plugin to copy and preserve any infections already in the code and, as you can see here, it can also sometimes directly interfere with the scan.
Therefore, you should disable caching, temporarily deactivate any caching plugins, and delete all cached files on your site, before running the Complete Scan. You can also add the cache folder to the list of directories to skip so that it will not spend so much time scanning temp files that should be deleted anyway. Just add the word “cache” (no quotes) to the “Skip directories with the following names:” field on the Anti-Malware Settings page and then run the Complete Scan again.
Please feel free to let me know if you need any more help with this.
