Please help with Export/import Joomshopping 4.1.0 and Joomla 3.0

Please help with Export/import Joomshopping 4.1.0 and Joomla 3.0

Please help! Got an error in Backend of Joomla 3.0 website. I'm using JoomShopping 4.1.0 and it's standart import export addon, on both pages, while clicking on Joomla's standart buttons like "back" "save" got next errors:

Uncaught TypeError: Cannot read property 'task' of null core.js:4
Joomla.submitform core.js:4
Joomla.submitbutton core.js:4
onclick index.php:230

WebServer: Apache/2.2.14 (Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1

Please help with advice...

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Aw: Please help with Export/import Joomshopping 4.1.0 and Joomla 3.0

Simple Export?
Simple Import?

Aw: Please help with Export/import Joomshopping 4.1.0 and Joomla 3.0

Yes, both Simple Export UTF8 & Simple Import UTF8. See screen attached. Really need this function to work further, but still can't get it work. Tried anything including disabling other extensions and changing php versions. Everything on local server...
Now i'm thinking to buy this extension:
http://www.webdesigner-profi.de/joomla-webdesign/shop/import-export/universal-csv-import.html?lang=en
Will it work with J3.0 and Joomshopping 4.2.0 ?
Suggestions?

Aw: Please help with Export/import Joomshopping 4.1.0 and Joomla 3.0

yes

Aw: Please help with Export/import Joomshopping 4.1.0 and Joomla 3.0

I re-open the ticket,

Why the SImple Export doesn't work for me??

I click on Export but nothing happens

Joomla 3.1.5 and JS 4.4.0

Thanks in advance

Aw: Please help with Export/import Joomshopping 4.1.0 and Joomla 3.0

javascript error?

example see firefox + firebug