Shortcode Breaking Site

I am getting the following fatal error when the nimble portfolio shortcode is inserted in my site:

[Mon Dec 03 18:51:17.992467 2018] [php7:error] [pid 20465] [client 66.162.212.19:51220] PHP Fatal error: Uncaught Error: Call to a member function getTemplatePath() on null in /nas/content/live/bluestarcarp/wp-content/plugins/nimble-portfolio/includes/class.NimblePortfolio.php:109\nStack trace:\n#0 /nas/content/live/bluestarcarp/wp-content/plugins/nimble-portfolio/includes/class.NimblePortfolio.php(99): NimblePortfolio->renderTemplateFile(‘items.php’)\n#1 /nas/content/live/bluestarcarp/wp-content/plugins/nimble-portfolio/nimble-portfolio.php(632): NimblePortfolio->renderTemplate()\n#2 /nas/content/live/bluestarcarp/wp-content/plugins/nimble-portfolio/nimble-portfolio.php(623): NimblePortfolioPlugin::showPortfolio(”)\n#3 [internal function]: NimblePortfolioPlugin::getPortfolio(”, ”, ‘nimble-portfoli…’)\n#4 /nas/content/live/bluestarcarp/wp-includes/shortcodes.php(319): uopz_call_user_func(Array, ”, ”, ‘nimble-portfoli…’)\n#5 [internal function]: do_shortcode_tag(Array)\n#6 /nas/content/live/bluestarcarp/wp-includes/shortcodes.php(197): preg_replace_callback(‘/\\\\[(\\\\[?)(nimble…’, ‘do_shortcode_ta…’, ‘[nimble- in /nas/content/live/bluestarcarp/wp-content/plugins/nimble-portfolio/includes/class.NimblePortfolio.php on line 109

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