Fatal error: allowed memory size exhausted: crashes pages on my site

This appears where the calendar should be or below the calendar. (I am also running an RSS feed reader on that area of the page, it vanishes when I activate this plug-in.)

Fatal error: Allowed memory size of 41943040 bytes exhausted (tried to allocate 49152 bytes) in /data/17/3/128/74/3454400/user/3850076/htdocs/home/wp-includes/SimplePie/Misc.php on line 502

This plug-in Was working before these last two updates (Updates of Dec 1 2015). I wish I could roll back the install to previous version of the plug-in – is there a way to do that?

https://www.ads-software.com/plugins/google-calendar-events/