BluePrint exception has occurred!

Message: count(): Parameter must be an array or an object that implements Countable
File: /is/htdocs/wp1041205_OQQU159GV2/www/blueprint/bootstrap.php
Line: 20
Backtrace:
#0 /is/htdocs/wp1041205_OQQU159GV2/www/com/navigation/comNavigation.class.php(102): error_handler(2, 'count(): Parame...', '/is/htdocs/wp10...', 102, Array)
#1 /is/htdocs/wp1041205_OQQU159GV2/www/com/navigation/comNavigation.class.php(56): comNavigation->buildUl(Array)
#2 /is/htdocs/wp1041205_OQQU159GV2/www/blueprint/core/pbpTemplate.class.php(275): comNavigation->normal()
#3 /is/htdocs/wp1041205_OQQU159GV2/www/blueprint/core/pbpTemplate.class.php(167): pbpTemplate->getContent()
#4 /is/htdocs/wp1041205_OQQU159GV2/www/blueprint/core/pbpTemplate.class.php(265): pbpTemplate->matchData('<body>\n<div id=...')
#5 /is/htdocs/wp1041205_OQQU159GV2/www/blueprint/core/pbpXhtml.class.php(103): pbpTemplate->getContent()
#6 /is/htdocs/wp1041205_OQQU159GV2/www/blueprint/core/pbpXhtml.class.php(29): pbpXhtml->getPageContent()
#7 /is/htdocs/wp1041205_OQQU159GV2/www/blueprint/core/pbpController.class.php(16): pbpXhtml->__construct()
#8 /is/htdocs/wp1041205_OQQU159GV2/www/index.php(14): pbpController::run()
#9 {main}