Lost all indexed post after update to v.3 + looks like problem with cron rebuild is still schedued


two day ago I did automatic update to v3. Before this all thins works - both plugins recent post widget and recent post.

After update:
1)I lost all indexed posts
2)Looks like the post indexing cant start over there is two days message something that indexing is scheduled. Now I tried once more rebuild index and I have there "You currently have items in your indexing queue."

Post indexing summary:
- You are running Post Indexer version 3.0
- Cron logging is : Disabled

What I or my webhosting do wrong?