parse error

Hello I’m getting this message whenever I click on the test:

Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM, expecting ‘]’ in /home/content/19/7712319/html/portuguesmente/wp-content/plugins/wp-survey-and-quiz-tool/lib/Wpsqt/Question.php on line 93

what is wrong here? Why can’t I access the test?

thanks

Paula

https://www.ads-software.com/plugins/wp-survey-and-quiz-tool/