I've just purchased and installed this addon. On my forum I've added a new group. In that group I try to add a Discussion Forum and I get the following error and no discussion forum is created:
Oops! We ran into some problems.
XF\Db\DuplicateKeyException: MySQL query error [1048]: Column 'cv6_icon' cannot be null in src/XF/Db/AbstractStatement.php at line 212
XF\Db\AbstractStatement->getException() in src/XF/Db/Mysqli/Statement.php at line 196
XF\Db\Mysqli\Statement->getException() in src/XF/Db/Mysqli/Statement.php at line 78
XF\Db\Mysqli\Statement->execute() in src/XF/Db/AbstractAdapter.php at line 79
XF\Db\AbstractAdapter->query() in src/XF/Db/AbstractAdapter.php at line 161
XF\Db\AbstractAdapter->insert() in src/XF/Mvc/Entity/Entity.php at line 1389
XF\Mvc\Entity\Entity->_saveToSource() in src/XF/Mvc/Entity/Entity.php at line 1121
XF\Mvc\Entity\Entity->save() in src/XF/Mvc/FormAction.php at line 69
XF\Mvc\FormAction->XF\Mvc\{closure}() in src/XF/Mvc/FormAction.php at line 159
XF\Mvc\FormAction->run() in src/addons/Truonglv/Groups/Pub/Controller/Forum.php at line 38
Truonglv\Groups\Pub\Controller\Forum->actionAdd() in src/XF/Mvc/Dispatcher.php at line 249
XF\Mvc\Dispatcher->dispatchClass() in src/XF/Mvc/Dispatcher.php at line 89
XF\Mvc\Dispatcher->dispatchLoop() in src/XF/Mvc/Dispatcher.php at line 41
XF\Mvc\Dispatcher->run() in src/XF/App.php at line 1931
XF\App->run() in src/XF.php at line 328
XF::runApp() in index.php at line 13
Oops! We ran into some problems.
XF\Db\DuplicateKeyException: MySQL query error [1048]: Column 'cv6_icon' cannot be null in src/XF/Db/AbstractStatement.php at line 212
XF\Db\AbstractStatement->getException() in src/XF/Db/Mysqli/Statement.php at line 196
XF\Db\Mysqli\Statement->getException() in src/XF/Db/Mysqli/Statement.php at line 78
XF\Db\Mysqli\Statement->execute() in src/XF/Db/AbstractAdapter.php at line 79
XF\Db\AbstractAdapter->query() in src/XF/Db/AbstractAdapter.php at line 161
XF\Db\AbstractAdapter->insert() in src/XF/Mvc/Entity/Entity.php at line 1389
XF\Mvc\Entity\Entity->_saveToSource() in src/XF/Mvc/Entity/Entity.php at line 1121
XF\Mvc\Entity\Entity->save() in src/XF/Mvc/FormAction.php at line 69
XF\Mvc\FormAction->XF\Mvc\{closure}() in src/XF/Mvc/FormAction.php at line 159
XF\Mvc\FormAction->run() in src/addons/Truonglv/Groups/Pub/Controller/Forum.php at line 38
Truonglv\Groups\Pub\Controller\Forum->actionAdd() in src/XF/Mvc/Dispatcher.php at line 249
XF\Mvc\Dispatcher->dispatchClass() in src/XF/Mvc/Dispatcher.php at line 89
XF\Mvc\Dispatcher->dispatchLoop() in src/XF/Mvc/Dispatcher.php at line 41
XF\Mvc\Dispatcher->run() in src/XF/App.php at line 1931
XF\App->run() in src/XF.php at line 328
XF::runApp() in index.php at line 13