Moving Articles 1.7.4 and modx 2.2 to new server

I have moved my old website to new server it has articles 1.7.4 and modx 2.2

Now i have problem, i have edited all config files with correct url, everything is working ok, except the articles?

Articles are not showing in manager!!

There is package installed, but not showing in resources treeview??

In error log i see something like this

(ERROR @ /connectors/element/index.php) Path specified for package articles is not a valid or accessible directory: /

It looks like it still uses the old path, but everywhere is changed
Is this problem of caching, or articles put path in database, but where to find it??

articles.core_path

Have you tried re-installing Articles?

Did you run setup after moving the site?

If not, try that. Then try deleting all files in the core/cache directory.