'Cannot use humhub\modules\user\widgets\UserPicker

[RaulMcKay]

While tryiing to invite user or add to group I have "An unexepted error occured while loading the search result" in logging I found:
exception 'yii\base\ErrorException' with message 'Cannot use humhub\modules\user\widgets\UserPicker as UserPicker because the name is already in use' in /path/to/humhub/humhub/modules/user/models/UserFilter.php:12 Stack trace: #0 [internal function]: yii\base\ErrorHandler->handleFatalError() #1 {main}

Humhub version 1.20 beta2

[buddh4]

Are you using a custom theme or any unofficial modules?

[RaulMcKay]

Yes, I use custom theme, but I only change colors, nothing more. Any unofficial modules, everything from marketplace

[rapidpage]

I do not use any custom anything, and only use plugins that are part of the humhub marketplace

[buddh4]

Is there another logged error right before the mentioned error (Administration -> Information -> Logging) and can you both tell me your ICU Version under "Administration -> Information -> Prerequisites"

[RaulMcKay]

PHP - INTL Extension - ICU Version (4.8.1.1)

$_GET = [ 'id' => '6' 'keyword' => 'fil' ] $_SERVER = [

[...] - cut information and server info e.g. ports, redirects, ip adressess

'REDIRECT_QUERY_STRING' => 'id=6&keyword=fil' 'REDIRECT_URL' => '/group/new-member-search' 'GATEWAY_INTERFACE' => 'CGI/1.1' 'SERVER_PROTOCOL' => 'HTTP/1.1' 'REQUEST_METHOD' => 'GET' 'QUERY_STRING' => 'id=6&keyword=fil' 'REQUEST_URI' => '/group/new-member-search?id=6&keyword=fil' 'SCRIPT_NAME' => '/index.php' 'PHP_SELF' => '/index.php' 'REQUEST_TIME_FLOAT' => 1488361983.098 'REQUEST_TIME' => 1488361983 'argv' => [ 0 => 'id=6&keyword=fil' ] 'argc' => 1 ]

[RaulMcKay]

Curious thing is that in messages when you click "new message" and try to choose a receiver, everything works fine. Any error occur.