startSession and Header errors

I’m getting errors while trying to use this plugin…

session_start errors from the get-go and Cannot modify header and a couple unknowns when trying to add the survey to my sidebar. (Screenshots attached with error messages)

https://www.dropbox.com/s/2eqlrzdbee0u13v/wpsqt%20error1.PNG
https://www.dropbox.com/s/p8su27zq0yvpng8/wpsqt%20error2.PNG

Any ideas of what’s going wrong??

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