Error when using colors theme

[HRN-webtrees]

Since yesterday's update, I get this error when using colors theme:
#0 unknown:unknown ErrorException("uasort() expects parameter 2 to be a valid callback, function '\Fisharebest\Webtrees\I18N;;strcasecmp' not found or invalid function name") #1 \app\Theme\ColorsTheme.php:82 uasort([array], '\Fisharebest\Webtrees\I18N;;st…') #2 \app\Theme\BaseTheme.php:984 hookAfterInit() #3 \includes\session.php:526 init([Tree]) #4 \individual.php:29 require('C:\wamp\www\webtrees\includes\…')