Fatal error due to unrecognized chars

WCF::destruct() Unhandled exception: Could not execute prepared statement: SQLSTATE[HY000]: General error: 1366 Incorrect string value: '\xE2\x95' for column 'requestURI' at row 1




#0 /var/www/woltlab/www/wcf/lib/data/DatabaseObjectEditor.class.php(69): wcf\system\database\statement\PreparedStatement->execute(Array)
#1 /var/www/woltlab/www/wcf/lib/data/acp/session/ACPSessionEditor.class.php(42): wcf\data\DatabaseObjectEditor->update(Array)
#2 /var/www/woltlab/www/wcf/lib/system/session/SessionHandler.class.php(543): wcf\data\acp\session\ACPSessionEditor->update(Array)
#3 /var/www/woltlab/www/wcf/lib/system/WCF.class.php(174): wcf\system\session\SessionHandler->update()
#4 [internal function]: wcf\system\WCF::destruct()
#5 {main}