android 4.1 update f-droid archive repo then cause to crashed

• Device OS and version: android 4.1.1 and 4.1.2
• Device model/manufacturer: vido n70-s and zte u970
• F-Droid version (in the About screen): 1.11
• F-Droid privileged extension version (if installed): not installed

What did you do? (clear steps if possible)

open client, enter settings, enter repos, enable F-Droid Archive repo, then it start updating repo.

What did you expect to see?

update F-Droid Archive repo completely.

What did you see instead?

when the downloading is processing, suddenly F-Droid has stopped running, and request email for feedback. so I submit my email crazyboyfeng@qq.com. you may find it in the feedback tracking system.