I installed "Module Cart".
As long as "Module Cart" is disabled, the shop works all right. As soon as I enable "Module Cart" I get an Error 500 Please install component "joomshopping".
Thank you.

Joomla: 3.6.5
JoomShopping: 4.15.0
PHP: 7.0.13
MySQL: 5.5.53
Website Url: http://www.terrafisch.ch
JoomShopping: 4.15.0
PHP: 7.0.13
MySQL: 5.5.53
Website Url: http://www.terrafisch.ch